A FEW HINTS ON THE MANAGEMENT OF TERRESTRIAL ORCHIDEiE. 157 
C. macranthon. — A fine species, a native of Siberia, from whence it was in- 
troduced by Dr. Fischer of St. Petersburgh. The sepals and labellum are of an 
uniform rosy purple, beautifully veined. It is perfectly hardy, and may be potted 
and otherwise treated like the other hardy species of this genus. 
C. venustum. — This is a singular plant, a native of Nepal, introduced in 1816. 
The leaves are singularly spotted, both above and beneath; the whole plant, in- 
cluding the flower stem, grows from six to nine inches high, bearing at the top a 
single flower of a yellowish green colour, tinged with bright red, and spotted with 
a rich brown ; the outside of the labellum also is of a light brown, veined with a 
darker colour. It requires the heat of the stove. It will require the same kind of 
treatment as the other stove Cypripediums. 
C. guttatum. — This species I have not seen, but from what I have heard, 1 
believe it to be a very good kind. It is a native of Siberia, is perfectly hardy, and 
should be potted in light sandy peat and vegetable earth, as recommended for the 
others. 
C. ventricosum. — This bears a great resemblance to the macranthon, but is 
rather darker in the colour of the flower ; it is also a native of Siberia, and was 
introduced in 1828, is perfectly hardy, and may be cultivated the same as the 
macranthon. 
C. humile. — This species grows about six inches high, the flower is rose- 
coloured, and very handsome. It is a native of North America, and has been in- 
troduced many years, but is still very scarce, in consequence of its propagating very 
slowly, and the plants dying off so soon, even with the greatest attention. The 
soil it seems to thrive best in is sandy peat, and, though pretty hardy, is apt to go 
off in the cold weather of spring ; the best way is to give it shelter in very cold 
weather, either in a frame or by placing a handglass over it. 
C. parviflorum. — The flowers of this species are very handsome, and delight- 
fully fragrant, bearing some resemblance in colour to the C. pubescens, but are 
smaller. The sepals are purple, and the labellum a brilliant yellow. It is a na- 
tive of North America, and was introduced so long ago as 1790, but is still far 
from plentiful. It is perfectly hardy, and should be potted in sandy peat and vege- 
table earth, and is propagated like the rest by dividing the root. 
DIURIS. 
D. aurea. — This a native of New South Wales, and is therefore a greenhouse 
plant. The flower stem rises about a foot and a half high, and produces from three 
to six bright yellow flowers. It should be potted in loam and peat, and may be 
propagated by dividing the roots. 
DISA. 
D. grandiflora. — This most splendid species is a native of the Cape of Good 
Hope, from whence it was received into this country by W. Griffin, Esq. of South 
Lambeth, in 1825. It grows about a foot high, and produces two or three flowers 
of a bright crimson colour in the two lower segments, and relieved with a pale 
delicate pink, spotted with a darker colour in the upper one. It is rather difficult to 
cultivate, being in the first place very impatient of wet, and, in the second place, 
