Skip navigation

Manage categories

Close

Create and manage categories in Nightshades: the paradoxical plants. Removing a category will not remove content.

Categories in Nightshades: the paradoxical plants
Add a new category (0 remaining)

Manage Announcements

Close

Create and manage announcements in Nightshades: the paradoxical plants. Try to limit the announcements to keep them useful.

Announcements in Nightshades: the paradoxical plants
Subject Author Date Actions

Nightshades: the paradoxical plants

Solanaum sanchez vegae

The Solanaceae are the nightshade family whose members comprise some of our favourite foods like potato and tomato, and some dangerous drugs like tobacco and deadly nightshade.

Nightshades grow all over the world and, as scientists at the Museum, we are working to understand their diversity and evolution. Come and join us in our explorations!

Nightshades: the paradoxical plants is taken from the book by our late colleague Charles B. Heiser, published in 1969.

Discover more about our favourite family of plants in the Solanaceae Source.

View the Solanaceae Source database

News from the Solanaceae scientists

Refresh this widget
Feb 18, 2015 The penultimate journey...

It's been a while but we have now the penultimate installment of the Peruvian Adventure by Dave the driver Hall...enjoy.

 

I think that fourth night must have been the first one I've spent at 2,700m and I didn't seem any the worse for it. I tugged at the wooden shutters to see what day five on the road might have in store. Weather: acceptable for driving on dodgy roads. High, thin clouds cut with watery pastels. A shabby old town in diluted blue and sunbleached turquoise. The plaza mayor was just creaking into life. A cluster of women in straw hats held conference outside a grocer's. A policeman heaved open the giant wooden double doors of an eroded old police station, yawned, and spat.

 

I took a cold shower, dressed and started lugging trunks and sample boxes from last night's sorting. Prof. Knapp was already up (of course) dismantling the drier. The daily task of packing seemed a little more arduous this morning. Either the altitude, or the shin-barkingly steep antique stairs. The van was parked in a square pound at the back of the hotel, which looked appealingly like the OK Corral. Sandy had been a little concerned that the truck might not still be there this morning, but the locals seemed harmless enough to me, if not exactly chummy.

 

The growing light revealed our hotel to be of a certain vintage; much of the rear was semi-derelict and empty. I creaked back and forth with my boxes through creepy cavernous dusty backrooms, using the return trips to investigate dark passages and musty staircases leading nowhere, the only sounds my wheezing and the drip of an old tap. And here an appealingly dilapidated old dining room-dance hall I could imagine thronging with local revellers.

Untitled-1.jpg

Morning in Celendin.

 

After breakfast I took a few moments to explore the town, too. It might be old hat for the Dr Livingstones in our midst but I was unlikely to set eyes on the place again. Erica likes telling me how amusing it is reading my rhapsodic perspective on what she sees as routine grubby fieldwork: I see cascades of mountains; she sees dirty socks drying on the dashboard.

 

(Erica here - not exactly how I phrased it - he was bemoaning us for failing to see the beauty all around us - Sandy and I were concentrating on flies and spuds )

 

The market was already open for a day's easygoing trade. I ambled over. Three schoolboys kicked a burst ball to each other on the way to classes. The policeman hadn't moved. Stallholders unhurriedly erected awnings and set out their wares along the narrow thoroughfares, the alley-tunnels filled with the pungent aroma of meat, overripe fruit and hawker-stall breakfasts. I bought plump oranges and tomatoes for lunch from one of the impassively leather-faced vendors and wandered back to the hotel, ready for another day behind the wheel.

 

But no! Erica announced she'd be driving today, to 'give me a break'. The cheek. I protested firmly, in my quietest voice. This felt like cheating, but I was anticipating incredible scenery, ahead so I didn't flap.

 

(Erica again - they are long days driving- even we are not that nasty to make him drive continuously)

 

In contrast to other towns thus far it was a fair doddle finding the route out of town. Without at least two simultaneous sets of directions being offered in each ear, the going seemed somehow easier. Being fair, it wasn't hard to navigate. There was little traffic, and thanks to the colonial grid system we simply had to find the edge of the town and keep going until we hit a road going east.

 

Nevertheless, this road looked unpromising – a narrow back-street cluttered with the detritus of townsfolk's lives: bits of motorbike, smashed agricultural implements, underfed dogs...

 

But here a sign, which told us it was a mere 150km to our next stop, Leymebamba, and presently we started climbing.

 

The narrow road wound up again through foothills scarred with gold-mining quarries, many illegal. The locals had been protesting for some time, largely to deaf ears, that these mines – many sponsored by American multinationals – are polluting the water supply.

 

Above the scarred hillsides we rose... the road surface was perfect and I couldn't help thinking what an epic bike ride this would make for the stout of heart. Eventually the treeline gave way to rousing views of Celendin far below, where the light-blue double steeple of the church in the town square poked above the ramshackle rooftops. The town nestled in a half-bowl surrounded by hills. It must have looked attractive to the early Inca settlers and, unfortunately for them, the Spanish too. The head of the valley ended in an unseen drop, and far beyond were mountains whose peaks seemed oddly level with the town itself... now it was clear how high up the town was.

 

Still we climbed, this time without finding any locals to pester about their potatoes. Spying as yet no specimens, we meandered upward and upward, through rugged moorland, ever closer to the clouds that before had seemed so far off. As the sun finally renewed hostilities and the clouds began to leak a bit of sunshine, we reached a high pass of about 3,500m where a tiny village sat incongruously amid the rugged landscape, complete with a tiny football pitch and neatly planted conifers. The place had a strangely manicured feel.

 

Then, suddenly, the other side. As we breached the other side of the pass, a completely different panorama opened up. A dramatic series of valleys and mountain ranges rolled into the east, rib upon rib wreathed in mist, multiple horizons fading toward the Amazon. Somewhere to our right, far below and well beyond view, the Marañón River was thundering on its 1,700km looping journey toward the king of rivers. My head span at the spectacle. Sandy and Evelyn discussed tomatoes. Erica drove on without comment.

 

Our way wasn't getting any wider. As we wound downwards, hugging the cliffsides, the road only narrowed further. The bends were like fishhooks, and here and there were patches where the roadworks had not reached or where recent repairs had simply slid down the cliff. There were no barriers to protect motorists from the yawning 1,000-foot drops a matter of inches from the wheels. Superfluous roadsigns warned us to slow down and keep right. Erica didn't need much encouragement. Everyone in the car seemed to become silent. I tried to look far ahead to see if anything was coming the other way. We could only imagine what it must be like for lorry and bus drivers.

 

I was beginning to enjoy myself.

 

Untitled-3.jpg

A yawning 1,000-foot drop inches to the left.

 

In the clouds now. I like being in clouds, but it doesn't help with the driving. Breaks in the mist revealed teasing glimpses of dark, sheer mountainsides. Here and there the sun poked through and a rainbow made a perfect technicolor arch over the road.

 

Untitled-4.jpg

Driving through the Peruvian mountains.

 

Then just as suddenly, out of the mist, full sunshine, the scenery changing from hairpin to hairpin. We were descending toward a lush shoulder of high land, an upper valley nestled in a crown of mountains far below, dotted with tiny farmhouses and quiltwork cornfields, into which the road descended in a series of insane switchbacks. It was a perfect lost valley; a prime spot for Eldorado.

 

Untitled-5.jpg

A prime spot for Eldorado.

 

I still have no idea how Sandy spots specimens from the car even at the modest speeds we were achieving. But at last Prof Knapp bade us stop for our first samples amid a gradually drier landscape.

 

The sun was melting the clouds away and the morning was mellowing nicely. Nearby, an allotment of sorts, a small bungalow and what I thought were petrol pumps. The immediate area was lush, catching runoff rainwater in a small series of irrigation ditches. Prime mozzie territory, I thought. Again, parts of the area had been cleared recently – the solanum species again proving keener than mustard to move in quick on new space.

 

My ridiculous sample notes about the sampling area – for 'twas my job – read: “A small irrigation ditch is nearby and a 'petrol station' nearby also.”  I see now it was not a petrol station, but someone's dwelling, but their toilets seemed public enough at the time.

 

Sandy and the Fly Girls exited, rummaged in the back for Sucky and Sweep, then set off into the undergrowth. Evelyn swished gamely. Erica bothered a bush. I made notes. Sandy snagged some excellent samples of Solanum dilleni. I went to the toilet again.

 

(Erica once more - many conversations on fieldtrips revolve around toilets - how often you need to go, the facilities etc)

 

On we went. As we sank riverwards, hopes rose in the back of the truck that the ever-more arid terrain may harbour the tomato relatives we had encountered in similar habitats earlier in the trip: habrochaites perhaps. It was getting drier and drier. I prefer the lush stuff up in the mountains.

 

We fairly freewheeled to the next stop a couple of miles hence, where a sharp bend in the road concealed a small clutch of solenum arcanum known from Sandy's notes to be in this location many years previously. It was still there. All manner of insects waited to be sucked from the bushes, but nearby sat a sizeable troop of Homosapiens Peruensis, taking a break from mending the road. They were much animated by the sight of Erica's immense suction apparatus. We had disturbed the species in its natural habitat, so had to bear with good grace the sniggering and what I imagined to be Spanish double entendres. The Challenges of Fieldwork.

 

My notes say we came away with some samples of “Solanum simplefolium” but, according to Google, this doesn't exist. That's a shame – I liked that name. I can only imagine it was Solanum pimpenellifolium. This sports little purple flowers and tiny tomatoes – tomatillos – which are edible. It's a really close relative of our tomatoes. Indeed, it is sometimes called a wild tomato.

 

Untitled-6.jpg

Some Peruvian geology.

 

Further we sank toward the Marañón in our search for tomato and potato data, through spectacular peaks and pyramids of twisted volcanic rock where lava seams poked through like ribcages, past abandoned pasture and the occasional hungry-looking donkey picking through the brush.

 

At last we reached the valley floor, at the village of Chacanto in the district of Las Balsas – gateway to the Amazonas region. It was now all firmly semi-desert, reminiscent of parts of Nevada or Utah, catching the full ferocity of the sun. It felt like being stir-fried. The river looked inviting, but the Marañón slides through at a good clip here even in the dry season. It is a mere stream compared with what it would become downstream, but the bridge that spans it is a good 100m in length. We rolled over the bridge, stopped only a few minutes for a coffee in the sleepy village, and went on our way. We still had a long way to go...

 

Untitled-7.jpg

The Marañón River at the bottom of the valley.

 

Erica - since writing these blog pieces we have been analysing some of the data and trying to figure out what some of the insects that we sampled are. It has taken months to do this and there have been at least 9 people so far going through the insects. many are about to be sent of to specialists across the globe. Upstairs from where I am typing this at my desk we have two people imaging some of the specimens before they are sequenced for their DNA....its a very exciting time for this project.

Jan 23, 2015 Digital Herbarium pilot - step by step

We introduced our new digital herbarium project in a previous post: with the herbarium of the Royal Botanic Gardens, Kew, we are moving 70,000 plant specimens temporarily to Picturae, a specialist company in the Netherlands, so that the herbarium sheets can be imaged in the most speedy and effective way. 

 

The images will then be sent to Suriname for transcription of the typed and hand-written information on the sheets into electronic form.  The information includes the species identification, the place and date of collection and often the collector, that can link to field notebooks and other resources. The images and data will then be accessible via online databases to scientists and conservation biologists and others for research and better understanding of plant distribution and biogeography.

 

This is what it all looked like as we packed up and got ready to go - not many people see this, so worth showing:

 

NHM_JAJ_DSC_7974.jpgThe NHM herbarium compactors

 

NHM_JAJ_DSC_7971.jpg

and the grey cupboards on the compactors

 

NHM_JAJ_DSC_7981.jpg

Jacek Wajer removing specimens of Dioscoreaceae (yams and related plants)

 

NHM_JAJ_DSC_8012.jpg

And wheeling them away on a trolley

 

NHM_JAJ_DSC_79601.JPG

Steve Cafferty preparing the transport boxes for the specimens

 

NHM_JAJ_DSC_8019.jpg

Jacek putting the specimens into the boxes

 

NHM_JAJ_DSC_8014.jpg

with colleague Jonathan Gregson

 

NHM_JAJ_DSC_8017.jpg

And Jonathan fitting the boxes onto the trolleys on which they will travel to Picturae in the Netherlands

 

 

More blogs to follow as the project progresses!  #DigitalHerbarium #NHM #Kew

 

 

@KewScience @NHM_Science

 


 


Nov 18, 2014 More Peruvian adventures

So here is the next blog installment from Dave 'Dave' Hall', who joined our team of Museum scientists on a field trip to Peru earlier this year. He apologises again for the lateness of the blog but once more his actual work got in the way of writing my blog . So without any further delay here you go...

 

Day 4: Cajamarca to Celendin

 

I would first like to reiterate that the account expressed herein is my own. My amateurish observations are a flimsy scientific account that probably fails to demonstrate either these samples’ importance or what further work subsequently will be made possible by Sandy and Erica’s project. It will leave a rich permanent legacy for generations to build on. In digging up background information on some of the species we found, I keep coming across Sandy, Segundo and Erica’s names in academic work. It goes deep.

 

I am not a morning person. Normally I creak wearily into life long after the flowers unfurl. But I began to be grateful we made such good use of our days. Being on the road by 8am began to feel like a late start. Given the distances we had to cover and the frequent stops for samples, it was essential. 

 

This Is Fieldwork, soldier.

 

Everyone seemed to have slept well, and we were in high spirits loading up. But I remembered sadly that we were a man down. We had said goodbye to Segundo at the end of the previous day. Sandy in particular had been grateful of his expertise, and we were all glad of his extraordinarily broad knowledge of the terrain. He seemed to know the entire region; all the best sampling spots – even some of the local people – intimately. Would we cope without him?

 

After a great coffee and a bad omelette, we were off.

 

We were in for a shorter ride than the previous day, so we could take our time over the samples. We negotiated the baffling one-way grid system out of Cajamarca, weaving the narrow streets between bread sellers and campesinos, mixed incongruously with smart office workers in sharp suits picking their way through the building traffic, eventually threading our way through Banos de los Incas upward into hills once again.

 

Untitled-2.jpg

Difficult to press: Solanum oblongifolium.

 

It was still slightly overcast as we stopped to take our first sample. Here Knapp bagged a Solanum oblongifolium – which sports “young stems and leaves variously pubescent with loose, translucent dendritic trichomes”, according to Solanaceaesource.org, (and therefore possibly Sandy, whose pictures are there from a previous Peruvian visit). It’s a fairly common shrub at altitudes above 2,000m and likes open places near pastures and roadsides. Its fruit looked to me like tiny, hard tomatoes, which they are, sort of, and they are difficult to press.

 

Sandy also bagged an Iochroma umbellatum - a rareish purple-flowered plant that has poisonous sap, rarely recorded but successfully so by one Segundo Leiva I see from one record. To top it off we snipped off a few samples from a species of Cestrum. which isn’t bad at at all for a single sample location.

 

The fly camp did equally as well here; Erica and Evelyn showing great dedication as they scrambled down a steep bank after their quarry, rummaging in the bushes, pooter wheezing. Dozens of fly species met their doom (which they are still sorting out I might add) along with numerous parasitic wasps, beetles and even a stick insect, which escaped.

 

Untitled-3.jpg

The bushes sometimes have a habit of fighting back...


Untitled-4.jpg

Erica reemerged covered in matter, mostly insects, seeds and pollen.

 

I contented myself record-keeping and observing a striking hummingbird fluttering about the treetops. 

 

On we went, winding steadily upwards through quite fertile, mostly arable landscape at a gentle, solanum-spotting pace until, barely an hour later, above the little town of Encanada, Sandy loudly expressed an interest in stopping. I did so smartly. Sandy had spotted what we thought must be another rarity – could this be a new species again?

 

She soon emerged from a farmer’s field with what appeared to me to be a domestic potato. As if to confirm this, on the other side of the road, three local people in Quechua gear were tending to their very own field of potatoes, filling hessian sacks full of plump spuds. While Sandy went to talk tubers with the locals, the ‘E’-team whipped out the nets and the positron collider for a short suction sample.

 

Untitled-5.jpg

Sandy talking tubers with the locals.

 

Then Evelyn and Erica joined Sandy for a jolly chat and a rummage about the spuds. Apparently if we wanted a sample of potatoes, the two women wanted sweets. Erica obliged. Later I discovered Erica had obliged with the sweets I had bought for the office. Bargaining “chips” if you will.

 

Meanwhile I, as the least-accomplished Spanish speaker among us, “guarded” the car, while nearby, a solemn tethered bull chewed dispassionately.

 

The sun was breaking through as we set off again. The sun was well past halfway; intermittent bursts of it felt quite powerful when the clouds broke. The arable land was giving way to more typical high Andean scrub and grassland. The scenery was as spectacular as the roads were narrow.

 

Did I mention the roads were narrow? And in sections, bits of it were falling away at the edges. Must be why the guide book, with its entire half-page devoted to this route, deters tourists from taking this “road less travelled” in the wet season.

 

Yet, in fairness, efforts had recently been made to patch it up. As we progressed, we often passed workmen replacing the surface. Nevertheless, the drops on Erica’s side of the vehicle were exhilarating, but Erica had a funny way of expressing it, especially when I suggested getting a closer look.

 

My “field notes” record “periods of bright sunshine; v warm, but clumps of cumulus congestus aren’t far away.” We found ourselves in the congestus before long as we reached a pass some 3,700m up. That’s about as high as I’ve been without a fuselage around me – how exciting. 

 

the pass.jpg

 

Following historical data on previous locations of solanum, Sandy directed us off the road and up a muddy track. After I had backed The Beast (aka Freddy - Erica Here - both Sandy and I tried to win Dave around to Freddy but Dave was not having it and referred the whole time to him as the Beast - jealousy is ugly) clumsily into an open gate, the equipment was once again unpacked and the entomologas poked around the foliage as a little brook babbled nearby.

 

I busied myself with lunch duties, piling up the now-ubiquitous avocado, cheese and tomato buns with a liberal application of the local relish – a somewhat energetic Peruvian salsa called rojo.

 

Erica sidled up with a few samples, one of which I swear she called a black-and-yellow blackfly. “Why isn’t it simply called a yellow and blackfly? I asked. “Or a yellow-striped blackfly? It looks like a hoverfly. Why not a black yellow-fly?”

 

She now denies this ever happened, but I swear it annoyed her at the time. I suppose this is why you should never confuse entomology and etymology.

 

Untitled-7.jpg

C3PO impression?

 

I distributed the butties from the back of the truck. Unfortunately, I had overestimated the average tolerance for rojo. Even Evelyn, who I had imagined would have polished hers off with local panache, seemed a little agitated. As the three teary-eyed scientists scraped off the lion’s share of the salsa from their buns, a mystery dog, which had appeared out of nowhere to share our lunch, also went in search of a drink in the stream. Some don’t like it hot.

 

At the risk of ridicule, can I say here that I thought the topography up here was not that dissimilar to parts of the Peak District. Rolling, rough pasture, grazing material, moorland – though not as managed, or as wet. And about 15 times the altitude.

 

Untitled-8.jpg

Peak District or Peruvian highlands?

 

Sandy made the comment that all the vegetation I was seeing would have been quite different as recently as 500-600 years ago - that is, preconquest – when there would have been more native scrub: small shrubs, berberis, vemonia.

 

Chiefly, the difference was the grass – the land use here chiefly “calafatal” grazing vegetation – which had been imported for domestic use and had then spread. Spread? Given that we were on an isolated moorland some 3,000 metres up and grass was chiefly what the eye could see for 40 miles in any direction, I found the idea this was all alien to Peru a bit challenging. What had happened to the original flora and fauna? How had grass been so successful in such a short time? And why then was I having such a hard time getting it to grow on our lawn?

 

A further three stops on our gradual descent yielded bounty of both flora and fauna; a triumphant Sandy found a healthy clump of Solanum zahlbruckneri first found in this area in 1936, according to records. This clump was found just outside the rather, um, rustic-smelling village of Cruz Campo.

 

A gleeful Erica applied her suck machine on a clump of modest shrubbery festooned with interesting pests for her to dispatch in the name of Science. And once again Sandy took a healthy sample of S.dilonii on the roadside near to human habitation and irrigation, proving once again that the solanum species do like a nice bit of disturbed soil.   

 

As we gently descended on the other side to the valley floor, we remarked on the gaudy but colourful election slogans that adorn every wall, even in the remotest habitations. All this for an election that is over a year away. I understand the owners get a small fee to allow parties to do the daubings. Imagine if ‘Dave’ Cameron came a-knocking and offered you a tenner to paint graffiti on your house?

 

Untitled-9.jpg

Unfortunate political decoration.

 

As we meandered into the outskirts of Celendin, Sandy bade us stop one last time, as she had spied a species of tobacco plant. She strode off into a nearby field.

 

Hold on, isn’t that someone’s garden? I hope she doesn’t get caught. What is one of the world’s foremost botanists doing hedgehopping in a Peruvian veg patch? Answer: science, pal.

 

As we sunk lower into our seats, a lovely scene unfolded on the other side of the road, as a young Quechua woman, strapped into a giant loom as if flying a giant kite, wove an enormous carpet from a mountain of llama wool at her side.

 

Untitled-10.jpg

A young Quechua woman weaving a giant llama wool carpet.

 

Her fingers working deftly and nimbly, body strained against the many strands hitched to the roof of her house. Weaving of this type has been practised for centuries in the Andes, and girls start learning their craft from age 6 or 7.

 

We found our way to a Plaza de Armas in the little provincial capital Celendin with little fuss. We checked into a charming tumbledown ex-colonial hotel on the square, where creaky wooden galleries looked broodily on to a dusty courtyard with fading art-deco tiles. 

 

Untitled-11.jpg

Plaza de Armas in Celendin.

 

As we unpacked and set up gear for another evening of recording, pinning and plant-drying, a school parade passed by as if to welcome us, breaking the silence of the sleepy town with a dash of local colour.

 

Untitled-12.jpg

A school parade welcomes us to Celendin.

 

I woke up strangely out of breath that night – a novel sensation I hadn’t experienced before. Elevation. How quaint.

 

But we slept soundly, ready for the next leg where we would be heading into the mysterious-sounding Marañon (means cashew fruit in Spanish, oddly enough!!) valley – gateway to the Amazon. 

 

Erica again - It is just as well that you are getting this blog piece in parts as it is giving us time back home to go through some specimens! Hopefully by the time we are leaving Peru in this blog I will be able to amaze you with some of the great finds that we collected along the way.

Aug 20, 2014 Peru - part two by Dave 'the civilian' Hall

Sorry folks – my fault on the delay. Five million visitors and a conference have waylaid me in posting this! Worth the wait though…here's the next installment from my partner Dave, who joined our team of Museum scientists on a field trip to Peru earlier this year.

 

Day 3: San Benito to Cajamarca

 

Another early start. As the mountains began to blush with colour, we (I) loaded up the van with samples and sweepers and the ubiquitous “Fanny” trout and tomato sandwich materials. The idea was to get to Cajamarca, 150km away, by the end of the day. It is the main town in the region, and the only road for us was over a mountain pass some 50km away and then down by a similarly circuitous route. In all, some 150km away, which sounds a doddle, but by now I had an inkling what 150K would be like up here.

 

Erica here - just thought I would interupt at this point. On the previous trip Dave decided to track our movements. We had to travel 100km in a day and he informed us that Google said that this would take maybe two hours...10 hours later...

 

With the van wrapped, packed and strapped, we lurched once more upward on the dusty track in the cool morning air. Our pace was slow, all the better to spot more of the introverted nightshade family. Our first landmark was a village called Guzmango, where we might have stayed in had we made better progress the previous day. It looked close on a map, but it was also above us by some stretch – mile upon mile of precipitous mountain track with yawning roadside drops. I enjoyed this very much. Erica enjoyed it less – Erica’s happier when she’s driving, but seems to be quite a nervous passenger, even if my driving is impeccable.

 

Erica - ...

 

The scenery became more and more spectacular – much more like the prior idea I’d had in my head of Peru. We were now above 2,000m, and the vegetation was more varied – still dry, but with pines and deciduous trees dotting well-cultivated land. San Benito was far below us.

 

img-1.jpg

Driving up into the moutains, with San Benito far below us.

 

As the road rose and we turned yet another hairpin bend, Sandy called for a stop – she’d spotted something. There was a good clump of Solanum habrochaites, the wild tomato we saw yesterday with its distinctive yellow flowers, nestled in the shady bend. I parked the beast, and the science people took up their weapons of choice, while I padded about enjoying the breathtaking views, taking field notes and observing the cows. Cows mean faeces and faeces means flies. I was learning.

 

img-2.jpg

Erica and the team searching for specimens by the roadside.

 

Sandy interrupted my reverie with a job – collecting the seeds for DNA sequencing from another Solanaceae species – possibly a S. neorickii  – she had spotted on the verge. This was a wild relative of tobacco. Like many of the Solanum genus, it appears to like disturbed ground, and these plants were clinging to a road cutting. It has sticky ova protecting hundreds of tiny seeds. I collected a small handful, feeling pleased with myself, until Segundo revealed his fistful.

 

Meanwhile Erica and Evelyn flapped about filling flasks and baggies full of lovely winged beasties of every description – already enough for several hours’ pinning. We were ready to get a wiggle on, but all hopes of further progress were abandoned when Erica spied a lonely Bombyliid (beefly) minding its business on a roadside leaf. An excited Erica stalked clumsily upon it through the treacherous underbrush, I felt it polite to point out that there were clouds of them in the air above her head.

 

Erica - I would like to have thought as myself as an elegant creature of the countryside...

 

As Erica’s knickers eventually become untwisted, she was able to explain that this was a rather exciting beefly mating display. Other minibeasts flitted about in jubilant swarms enjoying the early sunshine, including a very handsome black bumble bee displaying unusual hovering behaviour.

 

No matter: all were swept into the nets with gruesome efficiency and inhaled into the killing jars. Many of the unfortunate beeflies were rewarded for their display with a dose of deadly ethyl acetate. Science is a cruel mistress.

 

img-3.jpg

Animals obstacles on the dirt roads.

 

Eventually we were able to make further (slow) progress, every lurch of the truck met with protest, as I swerved goats and pigs and ambitious wheelchasing mutts, all the while stopping for samples along the way. We picked up more Solanaceae of various description, and an interesting purple Iochroma.

 

img-4.jpg

A purple Iochroma found at the side of the road.

 

Our last morning stop was off the main “highway” and down an even narrower mud track, where I had to drop the crew off and keep driving in order to find a place to turn round. I don’t know how Segundo finds these sites, but you can bet we wouldn’t have without him. It was in the lee of a hill, facing a fantastic valley full of cornfields and grassland, some crops perched at seemingly impossible angles on the side of mountains. Here oxen will beat your tractor any day in a ploughing competition.

 

5-rutted+track.jpg

We made slow progress along hillside tracks.

 

I noticed there were quite a few gum trees prevalent in the area. As they aren’t native I couldn’t fathom what they were doing up here, but Sandy says they were planted for firewood – quick growing and very flammable. I could have worked that out if I’d tried. Altitude?

 

We reached the top of the pass about noon. Time for a sandwich stop, and for me to properly take in the views at the top of the mountain. Some steps had been carved into the hillside where vegetables were growing. I ventured up, and soon started to feel how the altitude – about 3,400m – was indeed affecting my progress. Everything seemed a little a bit harder.

 

img-6.jpg

After a climb up the hillside the effects of high altitude were more obvious than ever.

 

The steps began to peter out. Then they disappeared into a maelstrom of brambles. But as I reached the brow of the hill a hint of a way seemed to reveal itself. I followed it for a few metres, scratching the hell out of my legs then vaulted an ancient wall at the top to reveal a grassy oasis at the summit, surrounded by an unforgettable panorama.

 

Worth the effort. Driving, you don’t always get to appreciate the view until you stop.

 

7-image_jpeg.jpg

 

8-mount+2.jpg

View from the top - well worth the climb.

 

Now it was a bumpy, dusty ride mostly downhill all the way to Cajamarca, still some way off.

 

I was expecting a smallish town, but it’s a sizeable settlement with some style – it has a lovely cathedral and church either side of a spacious Plaza de Armas, and atmospheric, narrow streets lined with colourful colonial mansions where campesinos in traditional dress mix comfortably with sharp-suited 9-5ers. Also, plenty of cheese shops. I found it bizarre that we reached such a place by dirt track.

 

9-hill.jpg

Cajamarca, our next stop.


10-plaza.jpg

Beautiful old buildings in Cajamarca.

 

We checked into our hostel dead beat, dusty and desirous of a beer, but we’d had a good day and a terrific haul.

 

Erica - it was a great haul. Today (20 August) - all the material that I and evelyn collected and put into ethanol every night has only just been sorted into Order Level (beetles, bugs, flies etc)...As Dave comes to the end of the journey I may have some results to tell you about the amazing insects we found. Till next time!

Jul 3, 2014 An existential experience - my fieldwork through the eyes of another

I have been away alot recently (that sounds familiar to all that know me) and one of those trips was a field trip to Peru. In fact I brought my partner with me to be our driver and field assistant. This is a big gamble - would we be able to cope without killing each other; would he understand and enjoy what we were doing; would he drive us off the cliff? These were all considerations that we pondered but eventually decided that it would be great - if we couldn't explain to him the value of our work then we reallly needed to work on our communication skills.

 

However it wasn't a holiday for him - as well as the driving we made him press plants, collect insects, take DNA samples, transcribe field data and also I made him write my blog . There was a lot so he will be doing it in instalments as he also has a day job . It has been enlightening reading it and seeing what we do through the eyes of another.

 

Without much further ado, I give you Dave:

 

For reasons best known to herself, The Doc thought it would be a good idea for me to come with her to Peru for two weeks as her field assistant/driver/Odd Job man. Part of the deal was to see if I could write her blog for a few days. Folly! The idea is that I might provide an outsider's perspective on what Erica does, as prior to this I had little experience with fieldwork beyond high-school geography. So I gave up two precious weeks of holiday and relented.

 

I've never been to South America. It's not something you pass up. I paid the air fare, but much of the (admittedly inexpensive) rest came free. As an editor in my job, at the very least this would be an opportunity for me to ask some awkward questions! So I'll be filling in for Erica and revealing what she and Dr Sandy Knapp, botanist extraordinaire and leader of this expedition, find in Darkest Peru (© Paddington Bear).

 

Untitled-1.jpg

The gang.

 

It took 20 hours of flying and 14 hours (más o menos) of driving to get our first sample, so let it be known that the Museum goes far for our money. We were joined by two wonderful spirits of the insect and plant world: Evelyn Gamboa of the entomology dept of the University of San Marcos in Lima (the oldest in the Americas) and later by botanist Segundo Leiva Gonzales, Director of the herbarium at Antenoar Orrego University in Trujillo.

 

First question: what are we doing here? Is it worth it? Is this some sort of jolly? I'd suspected Erica led a charmed life coming on these trips, which she called work. But I had to keep an open mind. So of course we're here to collect plant and insect samples. Specifically it's plants of the Solenacaea family (i.e. nightshades - wild relatives of our cultivated tomatoes, aubergines, potatoes and tobacco) - and the pollinators, pests and associated microfauna thereof. In particular, we'll be collecting diptera - true flies, which you'll all by now know about already if you follow Erica's blog.

 

Sandy says this is the first study we know of that samples both the plant and associated insect population together, in situ. The success of this trip - or otherwise - could have extensive repercussions for future study. Naturally, this trip will also add to the Museum's (and by extension, the world's) knowledge of these species, and will boost Segundo's university's collection. We'll also be able to tell what's happening to the distribution, prevalence and range of these species over time (many records go back decades).

 

And the data they find here could have a wide variety of applications. For example, a changing climate might put stress on current cultivars of tomatoes. Crossing these staples with certain varieties of their hardier Peruvian cousins might increase pest resistance, or tolerance to drier conditions for instance - agricultural benefits with with knock-on effects for food security, natural pest control, biodiversity and species distribution.

 

But, before all that can happen, we had to find them first. That meant a day of driving up the Panamericana north from Lima. We had the right car for it - a 4x4 Toyota the crew likes to call Freddie. It is owned by a man called Martin, who has never learned to drive it. I will be happy to test-drive it on this occasion. I will not be calling it Freddie...

 

 

dave.jpg

Dave and Freddy.


Untitled-2.jpg

Away from the sprawl of the capital

 

Once Freddie had escaped the sprawl and grubby winter permafog of the capital, we hugged the coast up the Panamericana and the fog lifted. The scenery slowly evolved from apocalyptic ashen desert into drifting caramel dunes, lonely pastel mountainscapes and roads that vanish on the horizon. We stopped in a roadside café made of reeds with a toilet located tellingly far from the main building that had no water, no toilet paper - but did have a colourful penguin collage painted optimistically on the outside. Yet here they served us the freshest and tastiest ceviche - perfect fodder when the thermometer is climbing above 30degC.

 

We spent that evening in Trujillo, where the crumbling colonial mansions and old courtyards of the old town seemed to me to be a vast improvement on what I'd seen of Lima at that point (which to be fair, was not much). Yet I felt I had been in the country for some time - a result of that temporal illusion you get when you're a bit jetlagged and you've crammed so much into a short period. But as Erica and I shared a beer at the end of a dusty day, I realised we hadn't even taken our first sample.

 

At 6.30 the next day we were off. We headed north again on the Panamericana and after an hour or two, turned right towards the distant mountains, roughly following the river Chicama. After a brief stop for grub in a charming market village called Roma we wound our way up a dry valley interspersed with fertile arable land into the foothills of the Andes. The dunes had given way to scrub - semi desert - where stately cacti pointed skyward and the road deteriorated into a dirt track full of entertaining potholes (n.b. not entertaining for everyone in the car). We stopped occasionally to sample the plants, and Erica showed Evelyn the ropes of how to collect with nets and Erica's primary weapon - the suction sampler. Basically this is a handheld vacuum cleaner with a net and container for catching the insects. Anyone wielding it looks like That Fourth Bloke in Ghostbusters. It looks daft, but it does its job. Vultures hovered hopefully in the blue as we inched inadvisably on.

 

landscape1.jpg

The variety of landscapes.

 

Hours of lurching later, Sandy bade us stop at a loop in the road, an unconvincing turnoff to a place called Colbot, having seen a likely candidate. Her instincts were correct - a single specimen of Solanum habrochaites clung defiantly to a cleft in the bend. This is a wild tomato species that is found on the western slopes of the Andes from central Ecuador to central Peru. This species is notable partly because, with a bit of crafty crossbreeding, it yields 20 times more sugar than the cultivated tomato - a matter of keen interest to the Heinz family.

 

Erica and Evelyn got out and swept their nets gamely - Erica performing a more detailed local sample and, as had been decided, Evelyn with a more free role, performing a general sweep in all the sites we encountered. Sandy cropped herself a small sample when they'd finished swishing. Here Erica discovered a beefly among the other unfortunate captives in her killing jar. As we know, Erica gets soppy about beeflies. But not so soppy as to let them go.

 

Segundo took a sample of Capparis scabrida - a relative of the caper plant - sprouting in the dry riverbed. Then Erica and Evelyn swept the hell out of this area with their nets and Erica seemed interested to have caught a micropezidae - stalky, stick-legged flies, which she feels are "quite funky".

 

We stopped for lunch here. A local cowherd came and joined us and he told us that there hadn't been any rain that year, and that it was making life difficult. I can but try and imagine. I was finding it hard to believe we would find much in this environment. But not for the first time I would be proven wrong.

 

cacti.jpg

Life finds a way

 

A single mototaxi - a tuktuk - wobbled past us carting an old lady, probably from the market in Roma. We'd passed it several times and when we'd stopped to look for specimens and it had crawled past us, the tortoise to our hare.

 

Untitled-3.jpg

The 'tortoise' to our hare

 

The vegetation became more abundant, as the road gathered height, along with my spirits. Not that I wasn't fascinated with the desert but, given a choice, I much prefer the mountains and greenery to deserts, and the scenery was becoming more and more preferable.

 

Several stops and samples later, we made a final stop in a bend where a stream passed under the road a mile on from a charming mountain village called San Benito. This location was teeming with life. Humans included. Children from the nearby village came to say hello, all curious to see what these gringos were doing on their patch. All except one young lad, who was having a bad day and preferred to throw stones at his friends. For this, his big brother took him home upside down.

 

village kids.jpg

Where there's water

 

 

Meanwhile, we swept for various insects, and I carried on my supplementary job of detailing the GPS location, weather conditions and general description of the sample site. I was also given the seed-collecting detail. Lots was found here.

 

sandy and plants.jpg

 

Sandy found three different kinds of wild tomato and then casually announced she had discovered  a new species of Browalia - a Solanacaea species sometimes grown ornamentally like petunias. This was something I found astonishing but to the experienced botanist, it was merely very interesting. And Erica discovered a few snail-killing Scyomyzids -the presence of moist liking flies was presumably testament to the damper conditions.

 

After an hour or so of sweeping, the mototaxi pottered round the corner, passed us again and disappeared round the corner for the last time. 

 

Untitled-4.jpg

Colourful buildings of San Benito.

 

 

After a welcome supper in a very rustic kitchen in San Benito, where Segundo secured us berths in a municipal hotel, Erica and Evelyn started pinning the specimens, Sandy set up her plant-dryer - an insulated stack of card and wood heated overnight by a small gas flame - and I started logging the samples we had found on Erica's ancient laptop. By the time we had finished it was time for bed.

 

 

But first I felt I should at least reacquaint myself with the night skies of the southern hemisphere and say hello to the Southern Cross. I avoid the overused word 'awesome' if I can, but it seems perfectly fitting here. I've never seen the stars quite as clear as that night in San Benito. I thought I had made some sort of mistake - but no, it wasn't low cloud, but the distinct ghostly veil of the Milky Way. '

 

To be continued....

 

 

So that was Dave's first thoughts on fieldwork with us..More blog pieces to follow....

Solanaceae blogs

Follow our scientists as they search for new species of Solanaceae around the world:


From our archive:


Actions

Notifications