Skeptrostachys latipetala (Cogn.) Garay, comb. nov. 
Basionym: Stenorrhynchus latipetalus Cogn. in Bull. Soc. Roy. Belg. 43: 
286, 1907. 
Skeptrostachys montevidensis (Barb.Rodr.) Garay, comb. nov. 
Basionym: Stenorrhynchus montevidensis Barb. Rodr. in Contr. Jard. 
Bot. Rio 4: 98, 1907. 
Skeptrostachys paraguayensis (Rchb.f.) Garay, comb. nov. 
Basionym: Spiranthes paraguayensis Rchb.f. in Linnaea 25: 230, 1852. 
Skeptrostachys paranahybae (Krzl.) Garay, comb. nov. 
Basionym: Spiranthes paranahybae Krzl. in Ann. Nat. Hist. Mus. Wien 
27: 110, 1913. 
Skeptrostachys rupestris (Lind|.) Garay, comb. nov. 
Basionym: Spiranthes rupestris Lindl., Gen and Sp. Orch. Pl. 474, 1840. 
Skeptrostachys Sancti-Jacobi (Krzl.) Garay, comb. nov. 
Basionym: Stenorrhynchus Sancti-Jacobi Krzl. in Fedde, Rep. 6: 22, 
1908. 
Spiranthes L.C.Rich., Orch. Europ. Annot. 20, 1817, nom. cons. 
Etymology: Speira= coil and anthos = flower, in reference to 
the spirally twisted inflorescence of the plants 
originally assigned to the genus. 
Syn.: Orchiastrum Seguier, Pl. Veron. Suppl. 252, 1754. 
Type: Ophrys spiralis L. 
Aristotelea Lour., Fl. Cochinch. 2: 522, 1790, not 
L’Herit. 1784. 
Type: Aristotelea spiralis Lour. 
Tussacia Raf. ex Desv., Obs. Pl. Environ. Angers 91, 
1818, not Tussaca Raf. 
Lectotype: Ophrys spiralis L. in hoc loco. 
Monustes Raf., Fl. Tellur 2: 87, 1837. 
Type: Neottia australis R. Br. 
Gyrostachys Pers. ex Bl., Coll. Orch. 127, 1859. 
Lectotype: Ophrys spiralis L. in hoc loco 
Ibidium Salisb. ex Small, Fl. SE United States, ed. 2, 
318, 1913. 
Lectotype: Ophrys spiralis L. [House in Bull. Torr. 
Bot. Cl. 32: 380, 1905] 
Triorchis Petiver ex Nieuwl. in Amer. Midl. Nat. 3: 
122, 1913. 
Type: Ophrys spiralis L. [Petiver, Opera 2: Ray’s Eng- 
lish Herb. and Cat., t. 68, f.7, 1764] 
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