| Arten: |
| Aa achalensis Schltr. |
| Aa argyrolepis Rchb.f. |
| Aa calceata (Rchb.f.) Schltr. |
| Aa colombiana Schltr. |
| Aa denticulata Schltr. |
| Aa erosa (Rchb.f.) Schltr. |
| Aa fiebrigii (Schltr.) Schltr. |
| Aa gymnandra (Rchb.f.) Schltr. |
| Aa hartwegii Garay |
| Aa hieronymi (Cogn.) Schltr. |
| Aa inaequalis (Rchb.f.) Schltr. |
| Aa leucantha (Rchb.f.) Schltr. |
| Aa lorentzii Schltr. |
| Aa macra Schltr. |
| Aa maderoi Schltr. |
| Aa mandonii (Rchb.f.) Schltr. |
| Aa matthewsii (Rchb.f.) Schltr. |
| Aa microtidis Schltr. |
| Aa nervosa (Kraenzl.) Schltr. |
| Aa palacea (Kunth) Rchb.f. |
| Aa riobambae Schltr. |
| Aa rosei Ames |
| Aa schickendanzii Schltr. |
| Aa sphaeroglossa Schltr. |
| Aa trilobulata Schltr. |
| Aa weddeliana (Rchb.f.) Schltr. |