Ayacucho: Prov. Huanta, Choimacota Valley, at 2900-3000 meters 
altitude, in shady places in evergreen bush-wood, flowers reddish- 
white, February 28-March 10, 1926, A. Weberbauer 75765. 
Spiranthes subumbellata C. Schweinfurth nom. 
nov. 
Synassa corymbosa Lindley in Bot. Reg. 19 (1833) 
sub t. 1618. 
Pelexia corymbosa Lindley Gen. & Sp. Orch. Pl. (1840) 
482—Krinzlin in Engler Bot. Jahrb. 54, Beibl. 117 
(1916) 19. 
The inclusion of this species in the genus Spiranthes 
necessitates a new specific epithet, since the name corym- 
bosa has already been used in the genus Spiranthes (S. 
corymbosa Ardnzl. in Engler Bot. Jahrb. 54, Beibl. 117 
(1916) 17. 
Spiranthes vaginata ‘‘Lindl.’’ ex Jackson in Ind. 
Kew. (1895) 967. 
Neottia vaginata Humboldt, Bonpland & Kunth Nov. 
Gen. et Sp. 1 (1816) 8831—Lindley Gen. & Sp. Orch. 
Pl. (1840) 472. 
Stenorrhynchus vaginatus Sprengel Syst. Veg. 8 (1826) 
710. 
In Index Kewensis (1895) p. 967, the authorship of 
this species was attributed to Lindley (Gen. & Sp. Orch. 
Pl. (1840) 472), and this citation has been continued by 
various authors subsequently. 
However, this concept was cited by Lindley (l.c.) as 
**Neottia vaginata’’ and included as No. 32 among a long 
list of Spiranthes species with the preceding caption ‘‘T'o 
this section [of Euspiranthes] probably belongs’’ [this 
species]. So, while Lindley’s obvious intention was to 
regard the species as a member of the genus Spiranthes, 
the fact remains that the combination was not specifically 
made by him. Consequently the citation should be given 
as above. 
[ 31 ] 
