Apatostelis Standleyi (Ames) Garay, comb. nov. —8. 
Basionym: Stelis Standleyi Ames, Sched. Orch. 9: 21, 1925. 
Apatostelis Tonduziana (Schltr.) Garay, comb. noy. —8. 
Basionym: Stelis Tonduziana Schltr. in Beih. Bot. Centralbl. 
36(2):393, 1918. 
Syn.: Stelis mirabilis Schltr. in Fedde, Rep. Beih. 19: 96, 
1923. 
Apatostelis umbelliformis (Hespenh. & Dressler) Garay, comb. 
nov, —2. 
Basionym: Stelis umbelliformis Hespenh. & Dressler in 
Orquideologia 6: 21, 1971. 
INDEX TO SPECIES OF STELIS 
abrupta Rchb.f. = Stelis purpurea (Ruiz & Pav.) 
Willd. 
Acostaei Schltr. = Stelis Powellii Schltr. 
acuifera Lindl. = Sect. Distichae c-| 
acutiflora (Ruiz & Pav.) Willd. = Pleurothallis sp. 
acutissima Lindl. = Stelis purpurea (Ruiz & Pav.) 
Willd. 
aemula Schltr. = Sect. Distichae c-3 
affinis C. Schweinf. = Sect. Distichae r-3 
alata Lindl. = Apatostelis alata (Lindl.) Garay 
alba H.B.K. = Sect. Concavae c-17 
Alberti Schltr. = Stelis pardipes Rchb-f. 
Alfaroi Ames & Schweinf. = Stelis purpurascens Rich. & Gal. 
Alfredii Schltr. = Sect. Distichae c-3 
alismaefolia Lindl. = Stelis flacca Rchb-f. 
Allenii L.O.Wms. = Subgen. Stelis c-22a 
altigena Schltr. = Stelis lamellata Lindl. 
amblyophylla Schltr. = Stelis muscifera Lindl. 
Amparoana Schltr. = Stelis parvula Lindl. 
angustifolia H.B.K. = Sect. Chasmostelis c-12 
anolis Luer = Subgen. Stelis c-21 
antennata Garay = Sect. Rhomboideae r-6 
antioquiensis Schltr. = Sect. Distichae c-4 
aperta Garay = Subgen. Nexipous 
apiculata Lindl. = Sect. Isochilae r-8 
apiculata Schltr. = Stelis oblonga (Ruiz & Pav.) Willd. 
aprica Lindl. = Sect. Concavae c-15 
19] 
