48 

 * ODONTOGLOSSUM RossiJ 



Boss's OdoRtoglossum. 



GYNANDRIA M01:^ANBniA. 



Nat. ord. Orcihdace;e, § Vande^e. 



ODONTOGLOSSUM, Kunth. Sepala kteralla patula libera, Labellum 

 planum, unguiculatum, ascendens, limbo reflexo dlviso dentato apice angustato ; 

 basi concavum crista bilamellata raro fimbriata scepiCis antic^ bidentata auctum. 

 Columna elongata, apice auriculata aut aptera. Sertum Orchidaceum, t. 25, 



Odontoglossum Rossii; pseudobulbis ovatis caespitosis ancipitibas monophyllis, 

 foliis oblongo-lanceolatis scapo radicall subbifloro longioribus, bracteis mem- 

 branaceis carinatis acuminatis, sepalis lineari-lanceolatis carinatis acuminatis 

 patentibus, petalis oblongis obtusis revolutis, labello subrotundo-ovato emar- 

 ginato undulato lamellis unguis conflucntibus rotundatis denticulis 2 ante- 

 rioribus obtusis, columna aptera pubescente. Sertum Orchid, t. 25. 



Pseudobulbi compressi, vaginis mar ce seen tihus breviores. Folia erecta, 

 bipollicaria, lanceoluta, striata, vix coriacea, scapo longiora. Scapus erectiis, 

 radicalis, medio nudus out sqriamd solitarid auctus, subbifiorus ; pedunculis 

 medio vaqinatis. Flores 2 uncias lati, erecti ; sepalis patentissinds, lanceo- 

 latis, luteo-viridibus fasco maculatis ; petalis albis basi purpureo guttatis ; 

 labello Candida, purissimo, sub lente minutissimt pubescente, ungue 3 lineas 

 longo columna aptera velutind paulb breviore. Lamell32 labclli carnosce, an- 

 tice connatce, fronte bidentatce, lutece, intiis sanguineo striatce. Stigma pwr- 

 pureo-marginat^lm. 



A charming plant, sent to Mr. Barker from Mexico by 

 his collector Mr. Ross, after whom it is named. The bright 

 white lip, lying as it were in the centre of a rich green 

 yellow and blue star of three points, produces a peculiarly 

 beautiful and unusual appearance. 



Many of the species of this genus are however handsomer, 

 and few less beautiful, than this ; let us therefore hope 

 that Mr. Hartweg will succeed in procuring them for the 



* From ocovQ a tooth, and yXoxraru a tongue, in allusion to the toothings of 

 the labellum at the base. 



