NKW OR NO'rKWOH'I'IIY ORCHIDS 
Closely allied to Pleurothallis Wercklei Schltr., from 
which it differs in having a tricarinate labellum with dif¬ 
ferent lobes, and in the lateral sepals being long-acuminate. 
In dried specimens the lateral sepals are yellowish-green 
tinged with purple. The dorsal sepal, petals, lip and column 
are of a deep port wine color. 
Costa Ric.\, C. H. Lankester s. n. Received at the 
Royal Gardens, Kew, in 1923. (Type in Herb. Ames No. 
26976. Duplicate from the type plant in Herb. Kew.) 
Epidendrum exasperatum Reichh. f. Reitr. Orch. 
Centr. Am. (1866) 85. 
This remarkable species, which is characterized by 
lateral and terminal racemes, is usually represented in her¬ 
baria by specimens that fail to give an idea of the plant as 
it occurs under natural and favorable conditions. From 
Mr. C. H. Lankester I have recently received specimens 
accompanied by the following note: “ One of the com¬ 
monest species at moist, high elevations, on nearly every 
fence post. Nom, vern, Estrella de Mar. Petals and sepals 
Hay’s brown (Ridgway PI. XXXIX), usually with a yellowish 
margin, especially the tip of the petals. Column, side and 
front lobes of lip, white, base of column, interior of side 
lobes at base, and basal half of the center of the lip light 
Perilla purple (PL XXXVl). As the flowers age, all white 
segments turn mustard yellow (PI. XVI). In favorable 
situations the plant attains heroic dimensions, with a central 
stem up to ten feet in height, and three quarters of an inch 
in diameter, possibly much branched.” 
Specimens prepared for the herbarium rarely exceed 
three or four decimeters in height. It is such species as 
R. exasperatum which indicate the necessity for full field 
notes. 
Costa Rica, La bistrella de Cartago, C. H. Lankester 
■105, .lanuary 12, 1923. 
Epidendrum pudicum Ames sp. nov. Herba tenera, 
plus minusve stricta, radicibus libratis glabris instructa. 
Caules graciles, vaginis foliorum omnino obtecti. Folia 
71 
