PLATE XV. 
ODONTOGLOSSUM REICHENHEIMII. 
M. REICHENHEIM’S ODONTOGLOSSUM. 
O. (Isanruium, Lindl.) pseudobulbis oblongis aggregatis diphyllis vix sulcatis, foliis oblongo- 
lanceolatis acutis scapo maculato laxe paniculato 3-plo brevioribus, bracteis brevibus 
membranaceis, sepalis petalisque subæqualibus oblongo-lanceolatis apiculatis, labello 
oblongo basi cordato apice obtusato lobulato, callo tumido utrinque ante basin, carina 
geminä in imå basi. 
ODONTOGLOSSUM REICHENHEMN, Reichenbach fil. in Bonpl. iii. 214; idem in Pescatorea, sub t. 19; Walpers, Annales, vi. fasc. 6. 
Lemaire in Illustr. Hortic. pl. 213. 
Habitat in Mexico, Ghiesbreght. 
DESCRIPTION. 
An epiphyte. PSEUDOBULBS oblong, slightly furrowed, from 2 to 4 inches long, clustered together. Lmavzs 2 on each 
pseudobulb, shining and leathery, oblong-lanceolate, pointed, about a foot long, much shorter than the scape. Scare 
upright or nodding, from 2 feet to a yard high, spotted, loosely panicled, bearing from 10 to sometimes probably 
50 flowers. Bracts few, short, and membranous, fitting close to the stem. SEPALS and 了 BTALS nearly equal, oblong- 
lanceolate, apiculate, about an inch long, greenish-yellow, barred with dark purplish-brown. Lire purple in some 
varieties, in others white, with a horseshoe-shaped band of purple on its disk, oblong, rather blunt, and slightly lobed 
at the apex, somewhat heart-shaped at the base, where there is a callosity on either side, and a double carina. 
COLUMN very slightly winged. 
This pretty species is well figured in *Pescatorea, where it is stated to be a native of Mexico, whence it was 
introduced by M. Linden, of Brussels. Tt was from his establishment that I derived the plant that is represented on 
the other side, and which flowered at Knypersley in May last (1865). It appears to be very easily managed, requiring 
the same temperature and treatment as O. leve, to which it is nearly allied, and which forms the subject of the following 
Plate. It is also very closely related to O. Karwinskii ; and I do not feel certain that the two may not eventually have 
to be united. At present, however, so few plants of either kind exist in the collections of this country, that the materials 
necessary for an extensive comparison are not forthcoming. 
The specific name was given by Professor Reichenbach in honour of M. Reichenheim, of Berlin, whose collection 
of Orchids and other plants has long been celebrated. 
Dissecrioxs.—1. Side view (magnified) of lip and column; 2. Front view of ditto. 
