THE SESSILE ONCID. 
10:3 
The habit of this species is entirely that of 0. pubes and 0. amictum. The flowers are large, 
bright yellow, blotched with brown-red ; the column white, with blood-red fleshy truncated wings. 
In structure it approaches nearly to 0. ampliatam and excavatum, from which its downy column, 
serrated side lobes of the lip, and peculiar two-lobed hairy crest abundantly distinguish it. Like so 
many others it varies much in the size and colour of its flowers ; the best variety we have seen was 
sent by Mrs. Lawrence. 
ampliatum 
Lbundulatis 
gen. et sp. orch.,p. 202. B. Reg. t. 1699. 
subrotundis ancipitibus rugosis maculatis diphyllis, foliis oblongis coriaceis 
irevissimis 
alis columnar 
Native country, Panama and Guatemala. 
A noble species, of which there are two varieties, one much larger than the other. According 
Gulf of T\icava : and 
gin 
throughout the coasts of Nicaragua, and in the Escuintla, 15 leagues from Guatemala; growij 
a climate the temperature of which does not rise above 80° or 85°; flowering in February. 
6. 0. onustum Lindl.gen. et sp. orck.,p. 203. 
O. foliis linearibus complicatis falcatis, scapo simplici, racemis cernuis secundis multifloris, 
sepalis omnibus liberis, labello bilobo transverse lobis lateralibus linearibus apice subdilatatis, callo 
base 
•ulifonni instructo, alis columnae 2 intoirerrimi 
untrj 
cultivation. 
coloured) in a simple eurv 
Not yet pa 
stramineum 
rotundat 
otundis unffuicuLitis 
carnosis 
e revolutis basi columnae proximo, nectariferis intermedio reniformi piano emarginato 
tubereulis disci 4 geminatis, columns alis carnosis linearibus obtusis elongatis 
decur 
Native country, Mexico. 
the lip. 
stiff, 
colour, with 
IAndl. in. Ann. not. hist. xv. 
0. pseudobulbis ovatis ancipitibus 2— 3-phylhs, foliis oblongis tenuibus 
erecto rigido paniculato pyramidali multo brevioribus, sepalis obtusis liberis dorsali ovali 
lateralibus linearibus, petalis duplo latioribus ovatis obtusis, Iabeffi lobis lateralibus amplexicaulibus 
intermedio bilobo latioribus, crista antiee excavata proeessubns 7 (?) linearibus anticis longioribus, 
columna nana alis verticalibus lineari-cuneatis sublobatis, rostello subulato. 
Native country, Peru, near Pasto in the woods of Menesco, on trees. 
