PL. CCCCII. 
CATASETUM IMSCHOOTIANUM tL. tinp. et coan. 
M. A. VAN IMSCHOOT’S CATASETUM. 
CATASETUM. Vide Lindenia, Engl. ed., vol. I, p. 7. 
Dp. cpa hah 
Catasetum Imschooti F is robustis, oblongo-fusiformibus, leviter compressis, transverse obscure 
annulatis ; foliis majusculis, late oblongo-ligulatis, acutis; racemis multifloris; floribus majusculis, pallide flavis; sepalis 
petalisque tenuiter membranaceis mollibusque, erecto-patulis, late obovatis, 11-13 nerviis, sepalo dorsali obtusiusculo 
caeteris acutis ; labello carnosulo, saccato, lobis lateralibus late rotundatis, margine denticulatis intus leviter replicatis, 
lobo terminali crasse carnoso et rigido, apice subtruncato intus valde replicato; columna breviuscula, subrecta cli- 
nandrio valde obliquo postice longiuscule rostrato, antennis aequilongis parallelibus antice leviter arcuatis. 
Catasetum Imschootianum L. LinD. et CoGN. in Fourn. des Orch., 4me année, p. 266 (1893).— The Orchid Review 
Teeps02e 
Crescit in Brasilia. 
his new species, which bears the name of Mr ALFrep Van Imscuoor, the 
well-known Belgian Orchidist, has stout, bright green, oblong-fusiform 
pseudobulbs, slightly compressed so as to offer an elliptical section, 
obscurely marked with five or six transverse rings, 6 1/2 to 8 inches long, 
1 5/, to 2 inches thick at their middle. Leaves more or less spreading, reflexed, 
ligulate oblong, acute, nearly trinerved, the last at the base usually no more ‘than 
5 /, to 6 inches long, but the apical ones attaining 20 inches in length and 3 */, in 
breadth. Spikes multiflorous. Pedicel and ovary of a pale, somewhat greenish 
yellow. Sepals and petals of a very pale, somewhat greenish yellow, very thin 
and flaccid, all spreading and straightened towards the apex of the flower, rather 
concave, obovate, 11 to 13 nerved, acute, excepting the dorsal sepal, which is 
very obtuse, 12 tot 13 */, lines long, 7 to 7 */, broad. Lip of a soft yellow turning 
to a dark brown at the apex, somewhat fleshy, broadly dilated into a pouch; side 
lobes large, broadly rounded, enclosing loosely the column, with the margins 
denticulate and somewhat turned inward, and a little prominent or obscure 
midrib; frontal lobe only very fleshy and rigid, nearly: truncate and strongly 
folded inward. Column very pale yellow, nearly straight, obtusely triquetrous, 
5 inches long; clinandrium very oblique, rather long, elongated in a beak back- 
wards; the two antennae yellowish, parallel and of the same length, projecting 
forward in the pouch of the labellum, only curved toward their apex, 7-7 */, lines 
long. The pollinia were already absent of the flowers which we have studied. 
This species has the general habit of C. Hookeri Linot., its nearest ally, 
though the later can be distinguished by numerous points, having considerably 
smaller pseudobulbs, with a perfectly circular section, and well-marked, blackish- 
brown rings, narrower leaves (2 /, to 3 */, lines broad) with numerous nerves; 
