PLATE XXX. 
۲ ODONTOGLOSSUM ROEZLII. 
ROEZL'S ODONTOGLOSSUM. 
O, (PHALÆNOPSIDEA) affine O. vexillario, pseudobulbis ovato-oblongis ancipitibus compressis 
1-2-phyllis, foliis lineari-ligulatis inferne striatis pedunculis 1-3-floris longioribus ; 
sepalis oblongo-ligulatis acutis, petalis sublatioribus ; labello a basi angustà sagittata 
cuneato flabellato obtuse bilobo ; carinis ternis in ima basi; preposità lamella transverså 
seu callis parvis geminis; columná apterà. 
Opoxrocrossum Roxziu, Rehb. fil. Xenia Orchidacea, ii. ; idem in Gard. Chron. p. 1302, (cum Xylo) 1873. 
Habitat in N. GRENADA, Roezl ; Backhouse in Gard. Chron. p. 1334, (1873). 
DESCRIPTION. 
A compact plant, of which the PSEUDOBULBS are ovate-oblong, 1-2 inches long and much compressed ; these bear 
one or two bright green linear acute LEAVES, which are remarkable for their parallel streaks—nine in 
number—on the under side, and are from six to ten inches long, and about 4 inch wide. The Soares 
or PEDUNOLES are shorter than the leaves, and bear from one to three (possibly more) large and beautiful 
flowers, which with the exception of some markings at the base of the petuls and on the lip are of snowy 
whiteness. Spars oblong-ligulate pointed at the extremity, fully an inch long. 了 BETALS rather wider than 
the sepals and with a rich crimson blotch at their base. Lip wedge-shaped, expanding from a narrow 
sagittate base into a broad two-lobed disk, an inch and a half wide, white with some bright yellow markings 
near the foot and in the region of the Crest; the latter being formed by three slightly raised “ carina" or 
ridges near the base on either side, traversed by two moderate sized calli placed in front. COLUMN wingless. 
This is a most charming Odontoglossum, allied to the preceding and to O. phalænopsis, but perfectly 
distinct from either. Its bright green narrow leaves—streaked like those of Saccolabium Blumer, at once 
distinguish the plant, even when out of flower, from its fascinating rival O. vexillarium ; which always bears a 
glaucous hue, and which has larger and broader foliage, and produces double the number of flowers on a 
scape. The first rumours that reached us of the plant led to a suspicion that it might, after all, be only a 
variety of O. Delon, but these unworthy fears were at once dispelled by the flowering of the plant itself at 
Mr. Bulls nursery in the early part of last September, when Mr. Fitch prepared his drawing, and Professor 
Reichenbach obtained materials for the description which appeared in the Gardeners’ Chronicle of September 
27, 1873. The Professor has also given, in his Xenia, a characteristic representation of the wild plant con- 
structed from the specimens supplied to him by its fortunate discoverer, Mr. Roezl; in whose honour the species 
is very properly named. It is a native of New Grenada, and, like O. veaillariwm, appears to be exceedingly 
rare; we must not, therefore, murmur if the precise locality—of which the knowledge is a fortune in itself— 
should be for awhile withheld. But there would have been no harm in telling us the approximate elevation of 
the native habitat, as the same is always important as a clue to culture ; especially in the case of plants with 
In this instance I apprehend that both O. Ztoezli and O. vexillarium are not found at a very 
a limited range. 
high level, and that, therefore—though happily entitled to rank among “cool” Orchids—they must be placed 
in the warmer division of the “ cool” Orchid-house. 
