Aylostera kieslingii (Rausch) Mosti & Papini

Regarded by some as a form of Aylostera fiebrigii (as are many others). This species has distinctive almost double orange flowers with rounded petals, the outers being slightly paler. A red-flowered form also exists.

The description is here.

Plants of this species in the collection include:

Aylostera kieslingii

Aylostera kieslingii WR694