ON THE CULTIVATION OF DENDROBIUM. 
45 
never will flower, but will continue to grow on ; when rested will 
flower freely. 
35. Dendrobiumteretifolum .—Threadlike-leaved. Another neat 
and pretty species ; a native of Australia ; the flowers are purple; 
the leaves are thready; the stem is very small. This requires a 
dry rest: introduced in 1823 : does best on a piece of wood. 
36. Dendrobium Heyneanum. —A native of Bombay ; introduced 
in 1828. I have never seen this species flower. Tt is a drooping 
species, and requires a basket to grow it in; the leaves are 
lanceolate-cumulate. This requires, like all the rest of the genus, 
a dry rest when done growing. 
37. Dendrobium cassytlioides. —The flowers of this species are 
yellow ; and it is a very beautiful and handsome species : a native 
of Australia. 
38. Dendrobium amplum. —The pseudo bulbs are formed like a 
species of Maxillaria, more than that of a Dendrobium ; having 
to each pseudo bulb a long segome ; the leaves are lanceolate 
and acuminate ; the leaves and pseudo bulbs are of a pale yellow 
colour; the pseudo bulbs are small, and four angular. I have 
never seen the flowers of this species, but I believe they are 
orange, and very large, having only one flower to each pseudo bulb ; 
the stem on which the flower is produced is only about one inch 
and a half high, and proceeds from the top of the pseudo bulb : is 
a native of the East Indies ; introduced in 1837 : is a very 
scarce plant; its species requires a dry rest to flower it; does 
well on a piece of wood. 
39. Dendrobium alpestre. —The leaves are linear and very 
short; the pseudo bulbs are not more in height than an inch 
and a half; the roots are few and very small; the flowers are 
white ; the sepals and petals are white, with the lip of a greenish 
white, striped with purple ; the spikes of flowers proceed out 
from near the apex of the pseudo bulb, and they droop down 
much in the same way as they do in denudus and aemulum, and 
several other species ; it is a beautiful little plant; and is a very 
abundant flowerer when well grown. It ought to have a good 
rest, after it has done growing and flowering ; is a native of 
Napaul ; found growing on rocks: introduced in 1839: does 
best on a log of wood ; and should not have too much moss 
about it. 
40. Dendrobium Macncei. —A native of Ceylon : is an erect 
