Amazon district, by Messrs. Hugh Low and Company. 
The plant from which our plate has been prepared is one 
which was purchased, when in flower, in February, 1914, 
for the Kew collection from Messrs. Sander. It formed 
part of a recent importation, once more from the Upper 
Amazon district, though the precise locality is not 
indicated, sent to St. Albans by Mr. Forget. The 
nearest ally of M. tigrinum is M. igneum, Lindl., a 
Peruvian species from which it is distinguished by its 
differently coloured flowers with a shorter lip. Both 
species thrive well in a tropical house under the conditions 
suitable for species of Catasetum. 
Drscription.—Jlert, epiphytic; pseudobulbs erect, 
fusiform-oblong, many-jointed, straight or very slightly 
curved, 4-7 in. long, 1-1} in. wide, rather narrowed 
upwards, few-leaved, clothed with closely adpressed 
membranous sheaths. Leaves elongate-lanceolate, acute 
slightly undulate, plicate, curved, 1-1} ft. long, 1}-2} in. 
wide. Scapes axillary, erect, rather stout, 4-6 in. long, 
clothed at the base with a few tubular sheaths, many- 
flowered; bracts ovate-oblong, subacute or obtuse, 
concave, 5—; in. long; pedicels 1-11 in. long. Flowers 
medium-sized, showy. Sepals spreading or reflexed, 
oblong-lanceolate, subacute, 1-1} in. long, yellow with 
numerous purple blotches. Petals elliptic-oblong, sub- 
acute, 1-1 in. long, yellow with numerous purple 
blotches. Lip fleshy, narrowed at the base, at first erect 
then obliquely ascending and incurved, entire, widely 
and somewhat deltoidly reniform, 1—1 ¢ in. long, rather 
acute at the tip, the margins strongly revolute, when 
flattened out 3-1 in. long, yellow with numerous brown 
markings. Column obliquely incurved, clavate, apiculate, 
5 in. long; anther apiculate ; pollinia 2, waxy, oblong, 
supported by a thong-like stipe, with a scale-like gland. 
Fig. 1, colamn with lower part of lip; 2, anther-cap; 3, pollinarium all 
enlarged. 
