TROPICAL AMERICAN ORCHIDS 
4-nerved, the mid-nerve bluntly carinate on the outer surface. 
Dorsal sepal about 3.85 mm. long, 2 mm. wide, lanceolate- 
ovate, acute, 3-nerved, the mid-nerve bluntly carinate, con¬ 
cave. Petals linear, slightly broader above, 3-3.3 mm. 
long, about .8 mm. wide above the middle, conspicuously 
1-nerved, obtuse or acutish. Labellum adnate to the column 
to the apex; lamina triangular-lanceolate, simple, concave, 
rather fleshy, about 3.7 mm. long, about 2.6 mm. wide at the 
base when expanded, acute, rounded at the base, provided at 
the base with a pair of short thick complanate rounded calli 
which are adnate to the column. Column very stout and 
thick, about 1.6 mm. long. Pollinia pyriform-ovoid, some¬ 
what complanate. 
Epidendrum nervosiflorum is apparently allied to E. ser- 
ricardium Schltr. 
Costa Rica, Cartago, Estrella, C. H. Lankester 790, 
March 27, 1924. 5500 feet altitude. “Sepals and petals 
green, lip white, anther purplish, lower lobes of column 
orange, two raised orange spots on white portion of lip, near 
centre” [probably the two basal calli]. (Type in Herb. 
Ames No. 28296.): A fragmentary specimen preserved in 
formalin is the same species, C. H. Lankester 688, March 
26, 1924. 
Epidendrum ramosissimum A. & S. sp. nov. Herba 
ramosissima. Caules leviter flexuosi vel fractiflexi. Vaginae 
foliorum valde verrucosae. Folia teretia, canaliculata. In- 
florescentiae perbreves, laxe pauciflorae. Sepala lateralia 
oblique lanceolata. Sepalum dorsale simile sed angustius. 
Petala linearia. Labellum triangulare, carina tridentata 
ornatum. Columna brevis, crassa. 
Plant 37-55 cm. or more tall (summit of stem missing). 
Roots fibrous, numerous, 1.8 mm. in diameter at the stout 
base, gray, glabrous. Stem distichously branched at every 
node, the lateral branches usually forking several times, 
2.5-3.5 mm. in diameter below, partially concealed by ver- 
rucose leaf-sheaths, sulcate-rugose and shining in the dried 
specimen; branches commonly incline in one direction as 
though wind-blown. Leaves terete, deeply channelled. 
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