Aylostera supthutiana (Rausch) Mosti & Papini
Sometimes confused with A. sumayana or A. albopectinata, and there are many plants being sold in nurseries called A. supthutiana which are really those species. This is a very dark-bodied plant, dark green with brownish tones, sometimes almost black, with darkish red flowers. The outer petals can be brown and pink, sometimes white, stamens red, and the stigmas are green. At first glance some individual plants may look like they belong in the Mediolobivia subgenus, but these are genetically more closely related to e.g. Aylostera heliosa than to any Mediolobivia.
The description is here.
Plants of this species in the collection include:
Aylostera supthutiana BLMT68.03
Aylostera supthutiana RH2086a
Aylostera supthutiana RH2475b
Aylostera supthutiana SL63e