ADDISONIA . 57 
(Plate 69) 
ONCIDIUM PUBES 
Hairy Oncidium 
Native of Brazil 
Family ORCHIDACEAE ORCHID Family 
Oncidium pubes Lindl. Bot. Reg. pl. 1007. 1826. 
An epiphytic orchid. The ae are three to four inches 
long, bearing two leaves at the summit. ‘The leaves are four to 
six inches long and about an inch broad, narrowed to a folded base 
and rather acute at the apex. The panicle i is drooping and is borne 
upon a scape bearing a few white scales, both the scape and the 
branches and pedicels of the inflorescence being a dark red. ‘The 
flowers are about three quarters of an inch in diameter. The petals 
and sepals ,which are greenish yellow on the outside and red-brown 
barred with yellow on the inside, are inwardly curved, giving the 
flowers a somewhat cup-shaped appearance; the lateral sepals are 
united almost to the apex, forming a narrow body which is two- 
toothed at the apex; the dorsal sepal is obovate, about a half inch 
long, rounded at the apex, and narrowed toward the base; the 
petals are similar in shape and size to the dorsal sepal but with a 
more narrowed base. ‘The lip is red-brown; at the base is an 
orbicular transversely wrinkled callus with two ascending obtuse 
horns; in front of this and immediately above the lateral lobes is 
another callus of two blunt spreading processes; the lateral lobes 
= the lip project downward, are incurved, and with revolute 
argins; the middle lobe has the margin strongly revolute at the 
base and is provided with a thick transversely rugose callus, the 
x of the lobe being broadly rounded and strongly reflexed. 
the pubescent column has on each side, about the middle, a thick 
and broad flat wing which spreads at a right angle to the column 
and is about as long as the column is wide. The anther is white 
with two pubescent processes. 
The plant from which the drawing was made was collected by 
J. N. Rose at Corcovado, Rio de Janeiro, Brazil, in 1915, and flow- 
ered at the New York Botanical Garden. It is an odd member of 
the genus, the contrast of the outer with the inner side of the sepals 
and petals giving it a striking appearance. The lip is of queer and 
unusual shape. It requires a tropical house for its successful 
cultivation. 
Grorcg V, NASH. 
