NEW OR NOTEWORTHY ORCHIDS 
the apex, 3-nerved. Column about as long as the petals, di¬ 
lated upward, 3-lobed at the summit; clinandrium entire. 
From the closely allied Stelis Alfredii Schltr. distin¬ 
guished in part by the form of the labellum and by the ra¬ 
cemes being shorter than the leaves. In the shape of the 
leaves it resembles closely some of the forms of S. Cooperi 
Schltr., but is a much taller and more robust species. 
Costa Rica, Province of San Jose, Las Nubes, Paul C. 
Standley 38643 (Type in Herb. Ames No. 29331.), 38570, 
38595, March 20-22, 1924. 1500-1900 meters altitude. 
Stelis parvula Lindl. Fol. Orch. Stelis (1858) 7. 
Stelis microstigma Reichb.f. Beitr. Orch. Centr. Am. 
(1866) 94, t. 8, figs. IV, 10-13. 
Stelis obscurata Reichb.f. Beitr. Orch. Centr. Am. 
(1866) 95, t. 8, figs. I, 1 & 2. 
Stelis microtis Reichb.f. Beitr. Orch. Centr. Am. (1866) 
95, t. 8, figs. Ill, 6-9. 
Stelis Bradei Schltr. in Beihefte Bot. Centralbl. 36, Abt. 
2 (1918) 385. 
Stelis rhodochila Schltr. in Beihefte Bot. Centralbl. 36, 
Abt. 2 (1918) 392. 
Stelis parvula Lindl. was described from Nicaraguan 
material collected by C. Wright in 1853-56. Recently an 
abundance of material referable to this species has been col¬ 
lected in Central America and is represented in my herba¬ 
rium by specimens from Costa Rica, Nicaragua, and Gaute- 
mala. Critical studies of this material have convinced me 
that S. parvula Lindl. includes S. microstigma Reichb. f., S. 
obscurata Reichb. f., S. microtis Reichb. f., S. Bradei Schltr., 
and 5. rhodochila Schltr. The flowers of S. microtis, as repre¬ 
sented by Wendland’s No. 883 from Desengano, Costa Rica, 
are similar in every way to flowers of Wright’s Nicaraguan 
plants described by Lindley. From the studies I have made, 
aided by flowers from the Reichenbachian Herbarium, I am 
convinced that S. microstigma and 5. obscurata are simply 
variants of S. parvula. S. rhodochila Schltr., from sketches of 
the type accompanied by fragments from Schlechter’s type 
20 
