THE ORCHIDOLOaT OF INDIA. 40 



PoGONiA, Jussieu. 

 255. P. flabelliformis, Lindl. Gen. ^ Sp. Orch. 415. 

 Concan, Law, in hb. Hooker. (350); near Dharwar, Stocks, in Tib. 



Hooker. (68) ; Mysore, Id. (54). 

 It is probable that Blume's BopJiostemon eoncolor should be 

 referred to this species. 



2bQ. P. carinata, Lindl. 1. c. ; Wight, Ic. 1. 1720. (Pogonia 2, Griffith, 

 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. Grriffith's Pogonia No. 2 is evidently the same ; of his 

 Pogonia No. 1, which seems to be near P. Juliana^ but distinct, 

 I have seen no specimen. 



Eeia, Idndley, in Bot. Beg. 904. 



This genus, like Dendrobium, consists of species extremely dis- 

 similar in habit, and must now receive several supposed genei'a, 

 created by different authors before the limits could be definitely 

 settled. These are ConcMdmm and Xipliosium of Grifiith, Ty- 

 lostylis, MycarantJies, Cylindrolobus, and Trichotosia of Blume, 

 and my own Bryobium and Tricliosma. 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 Conchidium, 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 (Dendbolieium), 

 large-flowered naked species (Xiphosium), large-flowered woolly 

 species with an unguiculate flat roundish lip (Tylosttlis), and 

 small-flowered woolly species (Mycaeais'thes), in which the 

 fleshy pseudobulb is sometimes exchanged for a slender cylindrical 

 stem like that of Trichosma. Next to these stands Teichosma 

 itself, with its long slender 2-leaved stems, large smooth flowers, 

 and fleshy anther. Another group, Hymeneeia, 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 



