Aylostera tarvitaensis (F. Ritter) Mosti & Papini

Probably the main distinguishing feature of this species is the very large orange-red flowers, compared to other Aylosteras. A. tarvitaensis comes from quite a small area, between Tarija and Rio Playa in Bolivia.

The original description is here.

Plants of this species in the collection include:

Ayloistera tarvitaensis (group)

Aylostera tarvitaensis FR773