After the excitement of our collections along the road to Quillabamba, we began today with a very prosaic collection - in the garden of our hotel! They had a species of Tiina’s Morelloid clade growing right in their window (one reason we chose this particular hostal) – Solanum polytrichostylum. It was also growing along the stream, so it is defintely native here. It is great that people (not just us!) like solanums enough to cultivate them for ornament – this one is called “suyttu ccaya” in Quechua.
We packed all our stuff (including the plants that had arrived via the encomienda from Andahuaylas) and set off up the Sacred Valley, as the valley of the Río Urubamba is called. The valley is the site of many Inca and pre-Inca ruins and settlements – many of these are famous, but many more are not excavated and are just part of everyday life. We decided to look for one of Tiina’s mysteries up a small dirt road out of the town of Urubamba; the collection locality was a bit vague and was from the 1960s so we didn’t really know what we would find.
Well, we didn’t find the mystery, but did find one of my favourite species, Solanum maturecalvans, at the end of a logging road. Its waxy white flowers seem not quite real, and the crinkled leaf base gave rise to the name of one of its synonyms – Solanum crotalobasis – the rattlesnake tail base!
Synonymy is one of those things that seems like a mistake – naming the same thing twice, but is really good evidence of how science really works. In the case of Solanum maturecalvans the German botanist Georg Bitter named two plants he thought were different Solanum maturecalvans and Solanum crotalobasis – they were from different places, looked a bit different, and he really didn’t have many specimens to compare in the early part of the 20th century. Now I come along, some decades later, and decide that those two type specimens belong to the same species – therefore one (the later one described) becomes a synonym. Not a mistake, just a re-interpretation of the evidence, along with decades more collecting and specimens to look at.
In the same bit of forest we found Solanum maturecalvans we also saw a lovely Jaltomata with blood red nectar – how cool is that!
Coming out of the mountains down through the town we saw Streptosolen jamesonii growing by the side of the road – it is really native to northern Peru and Ecuador, but we collected it anyway. It is a very interesting plant with a twisted corolla – essentially it has an upside down flower.
We then headed up the Urubamba valley to the town of Pisac, the site of another massive Inca fortress.
Here the excavations and restorations are still on-going – it was amazing to see the terracing being restored using ancient techniques, down to mixing the mud used as mortar by foot power!
We got caught in a torrential rainshower, but afterwards explored the hills behind the town and found the wonderful Salpichroa weberbaueri – named for Augusto Weberbauer, the author of the wonderful book The Vegetable World of the Peruvian Andes, who had collected the type specimen.See an earlier post from Lima for more about him.....
A bit of culture, a bit of botany – what a great day!