revolute. Two inner petals very small, incurved, with an 
acuminated, and twisted apex, fixed by its decurrent base 
to the margin of the column, near the base of the superior 
and outer petals, and at some distance from the two lower- 
“most, outer ones. Lip of so curious a form, as to be more 
easily represented in a figure than described in words. It 
is nearly an inch long, standing out at right angles from 
the flower; having a cylindrical peduncle or stalk at the 
base, at the apex of which are four large, curved horns or 
tooth-like processes, two obtuse and two acuminated ; there 
is an aperture within the base of each of the latter, and 
between them two small, upright teeth. The extremity of 
the labellum is a laterally compressed, and consequently 
vertical plate, double at its upper edge and sharp, obtuse 
at the lower edge, and gibbous at its base, acuminated at 
the extremity.  Germen two to three inches in length, 
curved, pedunculiform, not twisted. Column very long, 
semicylindrical, broadest upwards, and bearing upon its 
back ‘and sides the three upper petals. Anther terminal, 
operculiform, deciduous, with two obscure cells, containing 
two oblong, but below tapering, deep yellow, waxy, solid 
pollen-masses, fixed by their base to an oblong, white gland, — 
which forms a beak from beneath the anther, before the 
fallmg of the latter, 
This rare plant likewise, has been communicated by 
Messrs. Suepuerps from the Liverpool Botanic Garden, 
where it was introduced by Cuartes Parker, Esq. from 
Demerara. It is evidently the same species as the G. aéro- 
purpurea figured in the Exotic Flora, from Trinidad, differ- 
ing only in the somewhat paler and spotted flowers. 
_ The present plant is so closely allied to the Genus C1R- 
ruza of Mr. Brown, that-I scarcely know how they can be 
distinguished. The latter Genus includes the CymBipI0M 
dependens of Mr. Loppers, and my Goncora viridi-pur- 
purea: and Mr, Linptey attributes “ a stigma occupying 
the apex of the column, and the anther situated at the back 
of the column :—but whatever may be the case with the 
Cirruza Loddigesii, (Cympipium dependens,) | have shown 
that in the C. viridi-purpurea (Bot. Mag. t. 2978. f. 5.) the 
proper situation of the anther is to be terminal, though 
frequently when detached it is suspended at the back of 
the column : the same peculiarity I have observed in G. 
atro-purpurea. They all belong to Mr. Linprey’s tribe of 
VANDER, oe 
Fig. 1. Column with three of the Petals, 2, Labellum. 
