57 
351.t. 85. Lindl.G. & Sp. Orch. no. 1); pseudobulbis 
ovato-oblongis compressis, foliis lanceolatis subcoriaceis, 
scapo erecto multifloro, sepalis petalisque acuminatis un- 
dulatis, labello unguiculato oblongo obtuso undulato- 
crenato, basis trituberculato. —— New Grenada. — — 
Flowers large, yellow, scentless, with broad brown 
blotches. Only known from the figure above quoted. 
30. O. angustatum (Lindl. in Bot. Reg. sub t. 1992); 
pseudobulbis compressis, foliis longis lato-lanceolatis 
erectis scapo brevioribus, scapo paniculato, sepalis line- 
ari-lanceolatis acuminatis, petalis ovato-lanceolatis ungui- 
culatis undulatis, labello ovato-lanceolato acuminato: 
cristà baseos lamellata multifidä, columná mutica. 
Peru.——This is a very fine plant, with spotted flowers 
resembling those of O. Hallii and angustatum, and as 
much as three inches from tip to tip of the sepals. 
31. O. revolutum (Lindl. in Ann. Nat. Hist. 15. 256) ; foliis 
ensiformibus rigidis margine revolutis scapo rigido apice 
paniculato brevioribus, bracteis laxis acutis cucullatis, 
panieula subeorymbosa densa, sepalis petalisque lanceo- 
latis unguiculatis acutis, labello conformi sessili cordato 
lamellis 5 carnosis integris quarum tres superiores multo 
breviores: lateralibus subulatis, columna aptera.—— 
Popayan ——Scape above two feet long, terminated by 
a stiff corymbose erect panicle of flowers. The leaves are 
stiff and straight, rolled back at the edge, and when dry 
very much puckered, as if they had been fleshy. Mr. 
Hartweg found it on the Paramo de Guanacas, at the 
height of 11,000 feet above the sea. 
39. O. maculatum (Llave Orch. Mex. 2.35. Bot. Reg. 1840. 
t. 30); pseudobulbis oblongis compressis monophyllis, 
foliis. oblongis nervosis acutiusculis racemis pendulis 
multifloris brevioribus, bracteis navicularibus herbaceis 
ovario brevioribus, sepalis lineari-lanceolatis acuminatis 
discoloribus, petalis oblongis undulatis acuminatis, la- 
bello cordato acuminato subcrenato: appendice unguis 
bivalvi concavá cochleari apice. productá emarginatä per 
medium argutè serrulatä, columnä pubescente subapterä. 
Merico.——Sepals chesnut brown. Petals and lip 
clear yellow, spotted with brown. 
33. O. cordatum (Lindl. in Bot. Reg. 1838. misc. 90. Knowles 
& Westcott, Floral Cabinet, t. 100); pseudobulbis ob- 
