Leaving Itabuna we wound our way up through cacao country along the main road, through long stops due to road repairs, villages full of roadside stands and mile after mile of cacao planted in the understory of large trees. From the air it looks like forest and retains many of its functions - it is good for birds, for example (like shade coffee), but not good for the understory Solanum species I am interested in.
These roadside stands in small villages sell everything – this one has oranges, pottery, chopping boards in the shape of cashew fruits, cacao pods, and lots of bags of beijú, a sort of cracker made from cassava flour.
We stopped in the town of São Antonio de Conquista to collect a Masters student from Bahia who will be with us for this stretch of the journey – Lucas Marinho. He is studying the genus Tovomita in the family Clusiaceae, and works with André Amorim, the curator of the CEPEC herbarium, where we were a few days ago in Ilhéus. We also did some shopping – we will be camping (sort of) for the next few days.
Another brand name amusing for English ears – this juice drink comes in all sorts of flavours – but they all basically tasted the same – sweet, although I think I liked pineapple (abacaxi) best!
We are staying in a small house in the protected area run by Gambá (Group Ambientalista de Bahia) – they do great work managing the forest, providing native trees for reforestation projects and rehabilitating animals for release back into the wild.
One of these is unlikely to go back any time soon though – a tame guan (jacú) immediately found us and begged for food with a soft, but incredibly irritating (after a while) cooing noise. Lynn tried, rather unsuccessfully, to train her to perch on her (Lynn’s) arm by offering bits of papaya, but Tonia liked crackers better and refused.
Her name is Tonia and she is a species of the genus Penelope, we are not sure which, the bird book here is not the best.
Although birds are great, we were after plants so off we went into the forest along the small river coming out of the mountains. This was a much drier area than places we had been, some of the trees were deciduous and the understory was much vinier. We came here to find Leandro’s new species – called by us now the “fan thing” and we were not disappointed! It was everywhere along the trail… But no flowers or fruits…
That (momentary) disappointment was made up for though by finding what is certainly a new species related to the Solanum polytrichum we collected along the road to Una, much closer to the coast! Its relationship to that species is clear in its intense prickliness, very star-shaped flowers and fruits that are enclosed in the prickly calyx that grows a lot after flowering. We are sure this is different – how exciting!
The star-shaped flowers of this new species are pink, rather than green.
The calyx lobes that enclose the white fruit are thinner than those of the Solanum polytrichum we found close to the coast.
We stopped at a little waterfall, an oasis of wet vegetation amidst the drier (but pretty wet all the same) slopes.
We came back to the house for lunch and a bit of interim plant pressing before going up to the microwave towers on the top of the ridge - these are called La Pionera as well as Serra da Jibóia apparently – this can be why plant labels are so confusing, these sorts of double namings are never on maps or in atlases or gazetteers.
Leandro and Lucas pressing in front of the house with an audience (you can see Lynn in the background trying to train Tonia)!
The road up to the top of Serra da Jibóia was chock-full of solanums – including the “fan thing” in fruit! Now we can see why it has this temporary name…
This new species appears to only flower and fruit sparingly – or perhaps we are in the wrong season. The calyx in fruit expands to look like a little miniature ceiling fan – hence the name; it needs a good scientific name now…
We also found another one of the incredibly prickly vines with hairy fruits related to the Solanum rupincola we collected in Fazanda Duas Barras. This one had white flowers and a smaller fruit that was dark burgundy red outside and with only a very few black seeds inside – it tasted good though!
Another species in this group, Solanum depauperatum, had been collected along the same road, but this plant is not that – maybe it is another new one!
The top of the ridge was amazing – the quartzite rock was covered with huge terrestrial bromeliads (pineapple family) with inflorescences that were taller than I am – about 2m tall! These rocky outcrops have a special flora … But we were still on the hunt for the one species that had been recorded from here that I couldn’t believe actually grew here…
The view from the top towards the west – the huge rocky outcrops are inselbergs.
A member of the Velloziaceae, a family most diverse in these habitats on inselbergs and a Brazilian speciality; the flowers are about 3-4cm across. At the foot of this plant we also saw tiny sundews (Drosera) – this is very nutrient-poor soil.
After some time looking around the top and climbing down the slopes, we decided to go back before it got dark, giving up on finding Solanum cordioides, a species I had described in 2002 from areas near Una on the coast. I thought that perhaps the label had been in error or something – until Lynn sang her Bob Marley Solanum-finding song, and then a few minutes later shouted out STOP!! And there it was, a 7m tall tree of Solanum cordioides – I had wanted to see this in field ever since first seeing it in the herbarium, and oh how lovely! This has got to be one of the most beautiful solanums I have described… but what a strange distribution…
Our working idea is that Solanum cordioides occurs in nutrient poor soils, like the sandy soils of the coast and these inland inselbergs, but I need to do some more mapping and looking at specimens to see. The flowers are only about 6cm across, but are very conspicuous in upright groups amidst the shiny dark green leathery leaves…
What a way to end the day… I am not sure I have ever been more excited to see a plant in the field – it is great when you see something you are seeking that in turn generates new ideas about how nature works. We left agreeing with the sign we found at the top – it says “Nature is the only book all of whose pages (leaves) have value” – so very true.