Occasional Notes. 125 
finer. But I can assure orchid growers at home and also 
Mr. Jenman, that no one except the few of us who have 
been lucky enough to see the plant in its native home, 
has yet had an opportunity, in any way satisfactory or 
sufficient, of judging of the splendid qualities of this 
plant. 
To turn to another orchid, the following note refers 
to a variety of a fine old orchid, which is perhaps the 
commonest of its family in Georgetown gardens: — 
Oncidium Lanceanum var. superbum. 
This variety, which differs from the type principally in the richer 
colour of the flowers, is figured in a recent number of the Lindenia, 
t. xvi. It is a native of Dutch Guiana, and requires a hot temperature, 
with full exposure to light, and an a.mple supply of moisture during the 
growing period. 
The following two notes refer to an orchid collected 
on Roraima by Dr. SCHOMBURGK and by myself, and 
collected also at the Kaieteur by Mr. JENMAN. The 
original Roraima plant was described as Cypripedhim 
Lindleyanum by SCHOMBURGK. The Kaieteur plant was 
at first regarded as a distinct species, and described by 
Mr. N. E. Brown of Kew, as Selenipedium Kaietearum, 
N. E. Br., n. sp. : — 
Leaves 7—9 inches long, 2— z\ inches broad, lanceolate-oblong, 
acute, glabrous, very coriaceous, bright dark green above, paler beneath. 
Scape many-flowered, pubescent, with complicate, acuminate, glabrous 
sheaths and bracts, of an olive-green, with brownish-red nerves, and 
suffused with the same colour. Ovary 2| inches long. Dorsal sepal 
18 — 20 lines long, 9 lines broad, oblong, hooded at the apex, margins 
recurving, crisped-undulate ; lower sepal 15—16 lines long, 1 inch 
broad, elliptic, entire, or slightly bifid at the apex, concave, margins 
crisped-undulate ; both sepals are pale green, with reddish-brown nerves 
on the outside ; they are pubescent on both surfaces, but more minutely 
within. Petals 2\ inches long, 6 — 7 lines broad, falcately linear-oblong, 
apex very obtuse and emarginate, margins recurved, undulate and 
