ORCHIDACEAE QUAEDAM AMERICANAE 
Spiranthes pyramidalis Lindl. Gen. & Sp. Orch. 
(1840) 473. 
Spiranthes cobanensis Schitr. in Beihefte Bot. Centralbl. 
36, Abt. 2 (1918) 377. Schiedeella cobanensis Schitr. in 
Beihefte Bot. Centralbl. 37, Abt. 2 (1920) 380. Schiedeella 
pyramidalis Schitr. in Beihefte Bot. Centralbl. 37, Abt. 2 
(1920) 381. Gyrostachys pyramidalis Ktze. Rev. Gen. 2 
(1891) 664. Spiranthes cylindrica Lindl. apud Schitr. in 
Beihefte Bot. Centralbl. 36, Abt. 2 (1918) 377. 
This species, which was originally collected in Guate¬ 
mala by Skinner, is represented in Lindley’s Herbarium by a 
single specimen. I am unable to discover substantial dif¬ 
ferences between Lindley’s type and Spiranthes cobanensis 
Schitr. In the notes that accompany the original descrip¬ 
tion of S. cobanensis, Schlechter referred to his species as 
being a near ally of Spiranthes cylindrica Lindl. I cannot 
find that Lindley ever published this name. The reference 
is undoubtedly to S. pyramidalis Lindl., as it was with this 
species that Schlechter made comparison when he published 
his monograph of the Spiranthinae in 1920. 
Spiranthes pyramidalis Lindl. is also a native of Salvador, 
where specimens were recently found by Paul C. Standley. 
Salvador, Volcan de San Salvador, Paul C. Standley 
22994, April 7, 1922. In dry thicket near base of volcano. 
1000-1800 meters altitude. 
Spiranthes rubrocalosa Robins. & Greenm. in Amer. 
Journ. Sci. 50 (1895) 165. 
Spiranthes porphyricola Schitr. in Fedde Repert. 3 
(1906) 18. 
This very distinct species which appeared among C. G. 
Pringle’s collections made in the State of Chihuahua, 
Mexico, in 1887, has already received two names. Schlech- 
ter’s description of S. porphyricola was based on a duplicate 
of the type number of S. rubrocalosa. 
Stelis trinitatis Ames sp. nov. Caules secundarii 
trivaginati, monophylli. Folium oblongo-ellipticum vel 
ellipticum, acutum vel obtusum, coriaceum. Petiolus 
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