NEW OR NOTEWORTHY ORCHIDS 
the keel continued at the apex as a conical mucro. Dorsal 
sepal oblong-obovate, 4.1-4.8 mm. long, about 2 mm. wide 
above, acute with a dorsal mucro. Petals fdiform, slightly 
broader above, 4-4.5 mm. long, acute. Labellum adnate to 
the column to its apex; lamina 3-lobed, with the lateral lobes 
erect and embracing the column and the middle lobe con¬ 
tinuous with the column in natural position, about 2.7-3 
mm. long, about 3-3.9 mm. wide when spread out; lateral 
lobes obliquely round-ovate, cordate at base, subacute at 
opex, margins very minutely irregular; middle lobe ovate- 
to oblong-lanceolate, obtuse, the apex gently recurved. Disc 
shortly bicallose at base. Column very stout, dilated above, 
3.1 mm. long; clinandrium-wing prominent erect, 4-lobed 
"With the lobes denticulate. Anther depressed-semiglobose 
''^ith a short bidentate beak. Pollinia obliquely complanate- 
ovoid. 
The description was prepared from herbarium spec¬ 
imens supplemented by flowering material preserved in 
formalin. 
Epidendrum arcuiflorum is allied to E. Powellii Schltr., 
from Panama, but it has much larger flowers with different 
lip characters. It suggests also the South American E. 
^Tineniacum Lindl. which has similarly smaller flowers, dis¬ 
similar sepals and different middle lobe of lip. 
Costa Rica, La Fuente, Anastasia Alfaro 212, October 
27, 1925. 1200 meters altitude. “Flowers greenish drab.” 
(Type in Herb. Ames No. 33652): La Fuente, Alfaro s. n., 
November 12, 1924. 1150 meters altitude: La Flor, Peralta, 
C. Collarino (C. H. Lankester 1090), October 1925. 2600 
foot altitude. Leaves coriaceous, glabrous, yellowish green, 
racemes terminal arching. Sepals, petals and anterior lobe 
of lip vinaceous buffy (fawn color) with lip a brighter hue. 
Side lobes of lip pure white. Anther cap very pale yellow 
(according to collectors’ notes). 
Epidendrum bracteosum A. & S. sp. nov. Herba 
^Piphytica, crassa, humilis. Caules vaginis laxis imbrican- 
mus omnino obtecti. Folia elliptica vel elliptico-oblonga. 
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