21 



TRICHOSMA suavis 



Sweet-scented Hair Orchis 



GYNANDRIA MONANDRIA. 



Nat. ord. Orchidace^e, § Epidendre^e. 



TRICHOSMA. Sepala patula, sequalia, lateralia basi producta co- 

 lumns pedi adnata. Petala conformia, erecta. Labellum trilobum, cristatum, 

 cucullatum, cum pede columnse articulatum. Columna carnosa, marginata! 

 Anthera carnosa, fornicata, bilocularis, valvis verticalibus margine sphacelatis. 

 Pollinia 8, quaternatim cohaerentia, duobus cuique phalangi minoribus diffor- 



mibus. Epiphyta, ebulbis, caule squamis verrucosis vestito diphyllo. Folia 



subcarnosa, petiolata. Spica terrninalis, basi spathacea. 





Trichosma suavis. 



Coelogyne coronaria. Hot. Reg. 1841. misc. 1/8. 



Caules teretes, angustissimi, diphylli. Folia lanceolate acuminata, un- 

 dulata, coriacea, obsolete trinervia, racemi pedunculo basi tantum squamato 

 longiora. Bractese setacece apice sphacelates. Labelli lobi rotundati late- 

 ralibus plants intermedio undulato ; cristse lamellis crispis in lobum interme- 

 dium 5, in hypochilium 4 tantum geminatis. Columna semiteres, carnosa, 

 marginata. Anthera carnosa, antice projiciens, rotundata, fornicata, bilo- 

 cularis ; valvis verticalibus, margine nigro-sphacelatis. Pollinia 8, cereacea, 

 libera, quaternatim coharentia ; duobus cuique phalangi ovalibus duobus 



cuneatis emarginatis. 



When this curious plant was sent me from Chatsworth 

 I too hastily referred it to the genus Coelogyne, misled 

 certain similarity of appearance and structure. It is however 

 so very different in several circumstances, that I feel obliged 

 to recognize in it a genus distinct from any hitherto described. 



From Coelogyne it differs in the projecting foot of the 

 wingless column, in the singular fleshy anther, and in the 

 eight pollen-masses. It is more nearly allied to Ceratium, 

 but that genus, according to Blume, has a two-celled anther, 

 four of the pollen-masses very small, a siliquose fruit, and the 



* From 0p»$, hair, and *.w/<oc> ornament 





