TROPICAL AMERICAN ORCHIDS 
rounded and the middle lobe deeply bilobulate. Disc pilose, 
especially near the apex and at the base, with five lamellae, 
of which the middle one extends almost to the apex of the 
middle lobe. Column about 1.2 cm. long, slender, for about 
one-third of its length adnate to the labellum, densely pilose 
on the ventral surface near the base, hardly dilated above. 
Clinandrium strongly cucullate, entire. Anther fleshy pos¬ 
teriorly, produced at the apex into a rostrate appendage 
between the cells. Pollinia four, ovate, strongly flattened, 
becoming pulveraceous. Stigma deeply concave, decimate, 
similar to the stigma of Arethusa hulbosa. Capsule terete, 
about .3 cm. long, with the column persistent at its summit. 
RC?LPE,A c^TTizs 
Mr. Powell reports that the flowers fall very shortly 
after expanding and that one must be alert to secure them in 
good condition. 
Readily distinguished from Rolfea elata Zahlbr. by its 
smaller flowers and 5-lamellate labellum. [Fig. 6, fl. X 2.] 
Panama, “ Juan Diaz,” near Panama City, C. W. 
Powell 325, August-September, 1923. Found in damp 
places in dense shade. (Type in Herb. Ames No. 27036.) 
Sobralia corazoi Lankesler & Ames sp. nov. Caules 
rigidi, bi- vel tri-foliati. Folia valde coriacea, anguste el- 
liptica, acuminata. Vaginae foliorum arete appressae, ob- 
34 
