THE OROHIDOLOGY OF INDIA. 45 
Poeon1a, Jussieu. 
255. P. flabelliformis, Lindl. Gen. & Sp. Orch. 415. 
Concan, Law, in hb. Hooker. (350); near Dharwar, Stocks, in hb. 
Hooker. (68) ; Mysore, Id. (54). 
It is probable that Blume's Rophostemon concolor should be 
referred to this species. 
256. P. carinata, Lindl. 1. с.; Wight, Ic. t.1720. (Pogonia 2, Grifith, 
Notul. iii. 377, Ic. 345.) | 
I have never seen this plant, which appears to be perfectly 
distinguished by its stout habit, very large tubers, and lip acute 
and shaggy within, instead of being nearly naked and rounded at 
the point. Griffith's Pogonia No. 2 is evidently the same; of his 
Pogonia No. l, which seems to be near P. Juliana, but distinct, 
I have seen no Specimen. 
Erta, Lindley, in Bot. Reg. 904. 
This genus, like Dendrobium, consists of species extremely dis- 
similar in habit, and must now receive several supposed genera, 
created by different authors before the limits could be definitely 
settled. These are Conchidiwm and Xiphosium of Griffith, Ty- 
lostylis, Mycaranthes, Cylindrolobus, and Trichotosia of Blume, 
and my own Bryobium and Trichosma. But although no longer 
admissible as genera, the species collected under these names are 
for the most part convenient sections. 
The careful study of a very large quantity of materials leads me 
to propose the following classification. In the first place, the 
Species of Griffith’s Сохснтрсм, analogous to the small Stachyobia 
in Dendrobium, are readily knownby their thin leaves, almost stem- 
less habit, and smooth flowers ; such stem as they form is merely a 
depressed pseudobulb covered by the bases of the leaves. Then 
follow the species with true fleshy pseudobulbs and nothing more, 
separable into large-flowered woolly species (DENDROLIRIUM), 
large-flowered naked species (X1PHOsIUM), large-flowered woolly 
Species with an unguiculate flat roundish lip (Түтовтүзлз), and 
small-flowered woolly species (MxcazANTHES), in which the 
fleshy pseudobulb is sometimes exchanged for а slender cylindrical 
stem like that of Trichosma. Next to these stands TRICHOSMA 
itself, with its long slender 2-leaved stems, large smooth flowers, 
and fleshy anther. Another group, HYMENERIA, includes the 
species with thin sepals and petals, which are usually naked, and 
short fleshy stems having a few leaves towards the top. The 
remainder are truly caulescent; among these, four well-marked 
