M. Ostlund 814 (Collector Juan G.); near Joveritos, kilometer 353 
road Mexico-Acapuleo. Erik M. Ostlund 2436: State of Michoacan, Mt. 
Palma Cuata near Uruapan. Erik M. Ostlund 2398 (Collector Pablo L. ) 
Epidendrum magnispatha Ames, Hubbard & 
Schweinfurth, sp. nov. 
Herba epiphytica, robusta. Pseudobulbus breviter 
stipitatus, late ovoideus, bifoliatus. Folia elliptica, quam 
inflorescentia paulo breviora. Pedunculus spatha permag- 
na conduplicata maxima pro parte obtectus. Racemus 
laxe pluriflorus. Flores magni. Sepala lateralia elliptica, 
obtusa. Sepalum dorsale oblanceolatum, apice rotunda- 
tum. Petala oblanceolato-elliptica, apice rotundata. La- 
bellum columnae medio affixum; laminatransverse rhom- 
boidea, trilobulata; lobi laterales rotundato-triangulares ; 
lobus medius semicircularis; discus callo crasso mediano 
subquadrato apice in callum bulbosum extenso. Columna 
apice trilobata. 
Plant stout, epiphytic, about 33.8 cm. tall to the 
tip of the uppermost flower. Roots large, fibrous, g@la- 
brous. Pseudobulb ovoid, abruptly dilated from a short 
stipitate base, bifoliate, about 8 em. long including the 
base, 4.75 em. in diameter, the lower portion concealed 
by the fibrous remains of sheaths. Leaves elliptic, 22- 23.7 
em. long, 5.4-6.05 em. broad, acute to subacute at the 
somewhat conduplicate and twisted apex, narrowed to- 
ward the base, subcoriaceous, many-nerved. Inflorescence 
racemose, loosely 8-flowered in the specimen observed, 
about 25 em. long. Peduncle about 12.8 em. long below 
the flowers, mostly concealed by a very conspicuous 
toliaceous spathe. Spathe about 11.4 em. long, strongly 
conduplicate, the width 1.2 em. from midrib to margin, 
apparently broadly rounded at the apex. Rachis about 
9.5 em. long. Flower large, about 4-4.5 em. across the 
lateral sepals when expanded, with spreading segments. 
Pedicellate ovary about 2 cm. long, glabrous. Lateral 
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