158 A FEW HINTS ON THE MANAGEMENT OF TERRESTRIAL ORCHIDE^l. 
will not bear the least moisture during the period of torpidity. The most suitable 
soil for it is very sandy soil ; and the mode of propagation separation of the tubers. 
D. cornuta is a very different plant to the last, the flowers being much smaller, 
and being produced on a spike a foot and half or two feet high, and the colour of a 
pale blue. It requires the same kind of treatment as the last. 
D. graminifolia is also a native of the Cape, from whence it was introduced 
in 1825 ; it is a very splendid species ; the flower stem grows about a foot and a 
half high, and produces three or four bright blue flowers. This requires the same 
treatment as the cornuta and grandiflora. 
EULOPHIA. 
E Guineensis is a native of Sierra Leone, whence it was introduced in 1822. 
The flower stem grows a foot or more high, and produces from eight to twelve 
flowers ; the sepals and petals are brownish green, and the labellum a light pink 
colour. It requires the heat of the stove, and should be potted in a mixture of 
loam and peat. 
GEODORUM. 
G. dilatatum. A native of the East Indies, from whence it was introduced 
by Sir Joseph Banks. The flower-stem rises a foot high, and bears at its extre- 
mity a cluster of pink flowers, the weight of which causes the stem to droop 
gracefully. It requires the stove, and should be potted in a mixture of loam and 
peat. 
G. purpureum. This is also a native of the East Indies, and was introduced 
by Sir J oseph Banks at the same time as the one above ; it grows about the same 
height as the other, but has purple flowers. The treatment is precisely the same 
as for the dilatatum. 
G. citrinum. This species has yellow flowers, was introduced at the same 
time as the last, by Sir Joseph Banks, and requires precisely the same kind of 
treatment. 
GOVENIA. 
G. superba. Is a native of Xalapa ; introduced in 1828. The flower-stem 
rises before any leaves make their appearance, and grows about a foot high, pro- 
ducing abundance of yellow flowers, having a very delicious fragrance. The best 
soil for it is rotten vegetable soil from the bottom of an old tree, and a small portion 
of sandy peat. It requires the heat of the stove. 
HABENARIA. 
H. gigantea. This is a fine species, with large white flowers of a pleasant 
fragrance ; but not having seen it flower, I am unable to state particulars respecting 
it. The plant is a native of Bombay. 
H. fimbriata is a hardy species, a native of North America. The flower- 
stem grows about a foot high, and produces numerous purple flowers, the lip is 
fringed also with purple. It is rather difficult to cultivate ; but will grow in 
well drained pots of peat, and should be sheltered from excessive wet in winter, 
in a frame. 
H. ciliaris. This is also a native of North America, from whence it has 
