Mexico: in grass, in shady places in forest, about Tomasopo, State 
of San Luis Potosi, longitude ca. 99°23’ West, latitude ca. 21°50/ 
north, at ca. 500 meters altitude, September 3, 1937, Dino 6957 
(Tyre in Herb. Ames No. 50948). 
Habhenaria umbratilis seems to have no near allies 
among the Mexican Habenarias. 
Habenaria entomantha ( Llave & Lew.) Lindley 
var. Subauriculata (Robins. & Greenm.) Ames & Wil- 
liams comb. nov. 
Habenaria subauriculata Robinson & Greenman in 
Proc. Am. Acad. 82 (1896) 84—Ames Orch. 4 (1910) 
254, t. 77, figs. 8-4. 
Habenaria entomantha var. subauriculata differs from 
the species in having the petals entire or merely sub- 
auriculate, not deeply bifid. 
[ 60 | 
