Because of time limitation, I will not be able to visit Mexico in summer 2019. Yet, I would need a few species from there for some phylogenetic work by autumn 2019. These species are: G. spathacea, G. bicuspidata, G. ovatiloba, G. laevigata, G. caliculata, G. chazaroi & G. mirandae. I would need pictures, one herbarium specimen per species, as well as silica gel-dried leaf samples for DNA extraction.
Authorship is offered upon sufficient contribution.
Don´t hesitate to contact me if needed.