ADDISONIA 
(Plate 46) 
GONGORA TRUNCATA ALBA 
White-lipped Truncate Gongora 
Native of Mexico 
Family ORCHIDACEAE Orcuip Family 
Gongora truncata alba Nash, var. nov. 
An epiphytic orchid with erect leaves, and a pendulous raceme of 
seedy 5? flowers. The pseudobulbs are ovoid, up to three or 
four inches long, deeply furrowed, and usually two-leaved. The 
elliptic ppl up to fifteen inches long and four inches wide, are 
gradually narrowed at both ends, at the base into a short petiole 
or stalk, at the apex into an acute point. ‘They are ac on 
ASoth surfaces, with three to five primary nerves. “The acem e of a 
dozen or more spreading flowers, is pendulous, up to a foot long 
and with a stalk of about the same length, which sie from the 
base of the pseudobulb. The flowers, about an inch and a quarter 
across, are on curved stalks, with the column and lip turned down. 
The sepals and petals are pale straw color, marked with reddish 
brown. ‘The dorsal: goes is broadly oval, about one half inch long, 
with the obtuse apex recurved. The ie sepals, somewhat 
reflexed, are about three diartes of an inch long, and, when spread 
out, oblong and a little over a half inch ie: the margins are 
s 
petals, adnate to the base of the column on one side, are about o 
quarter of an inch long. The ivory white lip, about a half st 
long and of odd and unusual shape, is attached to the end of the 
column foot and follows the curve of the column with which it forms 
asemicircle. It is laterally compressed, its sides erect and touching 
at the middle, free at the base and forming two blunt horns. At 
about the middle of the lip on each side is an obliquely transverse 
ridge ending in a slender curved horn; the apex is channeled, with 
a recurved tip. The curved column is about three quarters of an 
inch long, slender, somewhat dilated above, and with a short reflexed 
horn on each side; in color it is similar to the sepals and petals. 
The plant from which the illustration was prepared was obtained 
in Mexico in 1903, flowering in the conservatories of the New York 
Botanical Garden for the first time the next year. 
The genus Gongora, comprising about twenty-five species, is dis- 
tributed from Mexico to Peru and Brazil, with one species in the 
island of Trinidad. It is of the tribe Gongorinae, to which also 
