NEW OR NOTEWORTHY ORCHIDS 
mm. wide, oblong-lingulate, with the margins of the basal 
half erect, convergent and thickened in front, the apical 
half ovate-obtuse from a broad base, conspicuously papillose 
on the upper surface, 3-nerved, ecallose. Column slightly 
arcuate, 3-lobed at the summit; the lateral lobes triangular, 
acute, denticulate on the margin; the middle lobe posteriorly 
situated, suborbicular, denticulate on the margin, exceeding 
the anther. Anther calyptriform. 
In the Orchid Review for 1916 (24:187), in a note en¬ 
titled “Orchids at Kew,” the following reference to Pleuro- 
thallis hamata occurs: “Pleurothallis hamata Rolfe, a na¬ 
tive of Costa Rica, is blooming very freely.” This is the 
only published reference to the species that I have been 
able to find. In the herbarium at Kew there are three spec¬ 
imens; one of these is briefly characterized by Rolfe as to 
color only: “FI. greenish yellow spotted with brown. Lip 
minutely dotted. Pet. with 3 stripes.” The inflorescence 
bears seven flowers. The other specimens were prepared, 
presumably, from the type plant cultivated at Kew. This 
plant was contributed by C. H. Lankester (no. 350). In 
August 1922 the original plant was flowering freely, and from 
it the specimen was made on which my description is based. 
Although contrary to approved usage, I have taken up 
Rolfe’s name for the species, and supplied the above descrip¬ 
tion. 
The navicular sepals with a prominent keel along the 
middle of each, which extends to the tip formed by the 
caudate hooked apical third, and the conspicuously trialate 
ovary distinguish Pleurothallis hamata from all other species 
of the genus now known to be natives of Central America. 
The secondary stems appear to arise from a more or less 
creeping rhizome. 
Costa Rica, C. II. Lankester 350. (Type in Herb. Kew. 
and a specimen from the type plant cultivated in Hort. 
Rot. Reg. Kew. in Herb. Ames No. 22856.) 
Lepanthes appendiculata Ames sp. nov. Herba epi- 
phytica, pusilla. Radices fibratae. Caules secundarii caes- 
pitosi, graciles, monophylli, vaginis arete appressis hispid- 
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