them together now, I can only say that I am unable to detect any essential 
différence between them. Klotzsch’s description of C. incurvum certainly agréés, 
and Reichenbach afterwards reduced this species as a synonym of C. saccatum. 
The specimen now figured is from the same région. It was introduced from 
a Peruvian habitat, at a considérable altitude, by Messrs Linden, L’Horticulture 
Internationale, Parc Léopold, Brussels, some few months ago, and flowered 
in this collection early in the présent year. A second specimen, though differing a 
little in some respects, is evidently a variety of the same, and shows that the 
species, like many others of the genus, is somewhat variable. 
It is a splendid species, one of the largest of the genus. The sepals are 
over 2 j inches long, marbled and almost suffused with purple-brown on a 
light green ground. The petals are a little shorter, and similar in colour, but the 
green ground colour is far more distinct, and the purple-brown blotches more 
sharply defined. 
The lip is a remarkable organ. It is somewhat indistinctly three-lobed, each 
lobe being strongly fimbriate, and sharply reflexed from the fleshy base. It is 
green on the sides, with the dise and front lobe almost suffused with reddish- 
brown. The spur is somewhat compressed on the sides, the nearly reniform 
mouth being broadly margined with ivory-white. The column is over i j inches 
long, and the two antennæ are disposed in different directions. One of them 
stands forward over the mouth of the spur, while the other lies along the face 
of the column, and is apparently functionless. 
It belongs to the section Myanthus, as recently defined by me, and to the 
group with the antennæ in different planes. It is closely allied to C. Christyanum 
Rchb. f., but is larger in ail its parts. 
The female flowers are at présent unknown, but it is to be hoped, now 
Catasetums are more frequently cultivated, and better understood, that this blank 
in our knowledge will soon be filled up. 
R. A. Rolfe. 
