27 
ONCIDIUM lacerum. 
Cut-lipped Oncidium. 
GYNANDRIA MONANDRIA. 
Nat. ord. Orcuinacra.  (Oncuips, Vegetable Kingdom, p. 173.) 
Sect. TERETIFOLIA : Chive-leaved. 
O. lacerum (Lindl. in Bot. Reg. 1844. misc. 38) ; foliis longis teretibus cari- 
natis, paniculà contractà multiflorà, sepalis petalisque conformibus 
obovatis concavis, labelli elongati laciniis lateralibus linearibus refractis 
intermedià longè et angustè unguiculatà bilobà margine lacerà, eristae 
dente altero transverso altero majore compresso a fronte, column brevis 
pubescentis alis semiovatis. 
Among the species of Oncidium, to which the general term 
of Chive-leaved may be given, and the type of which is 
O. Cebolleta, this, and O. longifolium, are the handsomest. 
It agrees with that species in the length of its leaves, which 
are as much as two feet, but it differs in having a smaller 
panicle, sharp column-wings, very narrow falcate side lobes 
on the lip, and a single-ridged tubercle at the base of that 
organ, placed at right angles to a flat somewhat concave 
swelling, which almost connects the side lobes. 
Oncidium nudum, a Caraccas plant, has much smaller 
flowers, little blunt column wings, a crenate crescent-shaped 
ridge in front of its column, with the convexity outwards, 
and a very small raised line at right angles to it. 
This species is found wild in Panama, whence it was sent 
to Messrs. Loddiges, with whom it flowered in April, 1844. 
Fig. 1 represents the column and base of the lip. 
Like the generality of Orchids, this requires to be potted 
in turfy heath-mould, mixed with potsherds, and to be kept in 
a humid atmosphere throughout the year. Being one of 
those which are not easily injured by the sun's rays, shading 
is only necessary to keep the temperature about 80°, without 
admitting cold air. In winter, very little water will be re- 
