93 
14. O. stellatum (Lindl. in Bot. Reg. 1841. misc. 25); 
pseudobulbo ovali compresso, folio solitario lanceolato 
recurvo, scapo subbifloro, bracteis ovarii triquetri me- 
dium haud attingentibus, sepalis petalisque æqualibus 
linearibus acuminatis herbaceis, labello rhomboideo 
grossè dentato appendice baseos truncato quadridentato 
libero.——Mexico.——A plant of nearly the same size 
and habit as O. Rossii, from which it differs in the sepals 
and petals being equally herbaceous and narrow, of a 
dull olive green, faintly spotted or rather clouded with 
purple. It has a pure white lip. 
15. O. pygmaum (Lindl. in Benth. Pl. Hartw. p. 82); pseudo- 
bulbis ovalibus vaginis membranaceis acuminatis vestitis, 
foliis angustè ovalibus in petiolum angustatis racemo 
paucifloro flexuoso dupló longioribus, sepalis petalisque 
subæqualibus, labelli pubescentis rhombei dentati appen- 
dice maximä bivalvi in medio tumidà: laciniis rotun- 
datis.—— Mexico. —— This curious little alpine plant 
forms tufts of pseudobulbs and membranous sheaths, 
from, among which just peep out the tiny colourless 
flowers, which are not above 3 lines in diameter even if 
spread out. 
16. O. constrictum (Lindl. in Bot. Reg. 1843. misc. 25); 
paniculä laxà basi foliosä, sepalis petalisque. expansis 
lineari-lanceolatis acuminatis, labello medio constricto : 
hypochilio oblongo, epichilio subpandurato. cuspidato 
serrato basi lamellis 2 serratis aucto, columná bicirrhosá. 
—— La Guayra.——This has the habit of Oncidium 
sphacelatum or some such plant. The flowers are 
yellow spotted with brown, except the lip which is white 
- stained with violet. 
17. O. hastatum (Bateman Orch. mex. guat. t. 20) ; pseudo- 
bulbis oblongis ancipitibus diphyllis, foliis ligulatis basi 
conduplicatis, racemo elongato paniculato, sepalis peta- 
- lisque conformibus herbaceis lanceolatis acuminatis, 
labelli hastati lobis lateralibus truncatis intermedio ovato 
acuminato, cristæ. lamellis 4 parallelis, columns auri- 
culis lunatis.—-—JMezico.—-——A. plant with the habit of 
Oncidium leucochilum. The flowers are greenish with 
red blotches, except the lip which is white with a purple 
stain at the base. ; 
