1911 
* ONCÍDIUM iridifólium. 
Pigmy Oncidium. 
GYNANDRIA MONANDRIA. 
Nat. ord. ORCHIDACER, S VANDER, 
ONCIDIUM.—Supra, vol. 13. fol. 1050. 
C. iridifolium ; foliis ensiformibus brevibus. equitantibus, scapo simplici sub- 
unifloro, sepalo supremo obtuso : lateralibus acutis collateralibus (herbaceis), 
petalis obtusis undulatis majoribus, labelli lobis lateralibus parvis subrotundis 
unguiculatis: intermedio multó nam subrotundo bilobo utrinque versus 
apicem emarginato, cristã (depressà 5-lobà apice truncatà), columns alà 
crenulatá circumdante. Gen. $ Sp. Orch. 203. 
Folia nunc equitantia, nunc explanata, semper acuta. Crista labelli 
apice truncata crenulata, basi disciformis, lobulis duobus in vertice disci. 
MES um 
This curious little species of Oncidium seems to be com- 
mon in many of the hotter parts of Ámerica ; for it has been 
found from Mexico, New Grenada, and Surinam, as far south 
as Brazil. M. Descourtilz, in his manuscript account of 
Brazilian Orchidez, observed it in the neighbourhood of the 
town of Bom Jesus de Bananal in the province of St. Paul's, 
growing exclusively upon the branches of Orange and Lemon 
trees; it was very abundant there, and constantly preferred 
dry places exposed to the sun. E 
The specimen from which the accompanying drawing 
was taken was sent me by Lord Fitzwilliam's desire, from 
the rich collection at Wentworth, in August, 1835. 
The outline figure at the bottom of the plate represents 
the column, with its two serrated wings, and the lower part 
ofthelip, with the tuberculated disk, by which the species 
of Oncidium are remarkably well distinguished. 
* See folio 1542, 
