with the C. tridentatum, the species being exceedingly lia- 
ble to vary in the size and marking of the flowers, (scarcely 
any two being exactly alike in these respects,) and in the 
number of blossoms upona raceme. The plant now figured 
for which and for the drawing of the foliage, I am indebted 
to Mrs. C. Horsratu, of Everton, Liverpool, was given to 
Mr. Horsrattz by Mr. Henry Harrison, who imported it 
from the Brazils. It has, as Mr. Evans (the able gardener) 
observes, an aromatic smell, and differs from my original 
C. tridentatum in the larger flowers, and much broader se- 
pals: and may almost be considered identical with the va- 
riety from Trinidad, of which a single flower is represented 
in the plate of C. floribundum in the Exotic Flora, f. A. 
The C. tridentatum, already given in the Bot. Magazine, 
has a much longer raceme and an almost entirely yellow 
lip. C. Claveringi of the Botanical Register differs chiefly 
in the more highly coloured blossoms and densely spotted 
column, while that of Mr. Loppicrs, which Professor Linp- 
LEY refers to his, is remarkable for the deep blood-coloured 
inner surface of the labellum.* 
In all, the elastic nature of stalk of the pollen-masses 
is quite remarkable: in consequence of which the latter 
are thrown to a considerable distance, and with much force, 
on the anther being removed ; and they then firmly adhere 
to whatever body they strike against, by the large glutin- 
ous gland. 
* Still another variety has, since the above was written, been also sent to 
me by Mrs. HorsFA.t, It is remarkable for the greener hue of every part 
of the flower, especially of the labellum, and the much longer and stronger 
teeth of this latter. It may be called C. tridentatum, 9. viridiflorum. It 
was introduced from Demerara, by WinL1aM SANDBACH, Esq. 
Fig. 1. Column. 2, Anther-case. 3. Pollen-masses, Stalk and Gland :— 
slightly magnified. 
ne Nt ee are eee mam 
