NEW OR NOTEWORTHY ORCHIDS 
and at the summit terminated by several imbricating bracts. 
Flowers fasciculate, opening in succession, hyaline, spotted 
with marooii. Pedicel and ovary about 4 mm. long, much 
exceeding the subtending bract. Lateral sepals 6.5 mm. long, 
1.5 mm. wide above the base, oblong-lanceolate, caudate, 
2-nerved, the inner nerve forming a distinct external keel, 
conspicuously glandular along the nerves on the outer sur¬ 
face and on the margin, the marginal glands .25 mm. long. 
Dorsal sepal 7 mm. long, 1.5 mm. wide near the middle, 
similar to the lateral sepals, 3-nerved, the nerves carinate on 
the outer surface and distinctly glandulose. Petals about 3 
mm. long, scarcely 1 mm. wide at the middle, narrowly 
lanceolate, acute, sparsely fimbriate, 1-nerved. Labellum 
3 mm. long, about 1 mm. wide above the middle, 3-nerved; 
apical portion very fleshy, linguiform, strongly convex, 
shallowly excavated beneath, rounded at the apex; basal 
portion minutely auriculate on each side in front of the broad 
abbreviated claw, glandular beneath, raised on either side 
in a broad triangular keel. Column slender, about 2 mm. 
long, at base produced into a conspicuous blunt bilobulate 
glandulose foot, strongly cucullate at the apex, with the 
apical margin faintly denticulate. 
From Pleurothallis hastata Ames, its nearest Central 
American ally, P. strumosa is in part separable by its con¬ 
spicuously 3-nerved fringeless labellum and by its conspicu¬ 
ously glandular sepals. [Fig. 6: 5, flower with perianth seg¬ 
ments spread out X 5. 6, labellum X 8 %.] 
Costa Rica, Carpintera, C. H. Lankester 766, February 
1924. (Type in Herb. Ames No. 28813.) 
Pleurothallis uncinata Fawc. in Journ. Bot. 33 (1895) 
12; Cogn. in Urb. Symb. Antill. 6 (1909) 416; Fawc. & Rendle 
FI. Jam. 1 (1910) 63, t. 10. 
Pleurothallis uncinata Fawc. has not been noted here¬ 
tofore as a native of Central America. 
Costa Rica, Province of Cartago, El Muneco, south of 
Navarro, Paul C. Standley 33900, 33904, 33911, February 
42 
