37 



ODONTOGLOSSUM CORDATUM. 



( Cordate-lipped Odontoglossum.) 

 LINNEAN SYSTEM. XT „ NATURAL ORDER. 



No. 100. 



GYNANDRIA MONANDRIA.. ORCHID ACE.E . 



GENERIC CHARACTER. 

 Odontoglossum. (Hums, et Kunth.) Perianthium explanatum sequale ; sepalis petalisque 

 angustis acuminatis liberis. Labettum indivisum ecalcaratum unguiculatum unque cum basi 

 columnse continuo, lamina, patente basi cristata. Columna erecta membranaceo-marginata apice 

 utrinque alata. Anthera bilocularis. Pollinia 2 solida caudicula lineari glandula. hamata. 

 Herbce epiphytes pseudobulbiferas. Folia plicata. Scapus terminalis vaginatus. Flores speciosi. 

 Kunth. 



Perianth explanate, equal. Sepals and Petals narrow, acuminate, free. Labellum undivided, 

 spurless, clawed, claw continuous with the base of the column, lamina spreading, crested at the 

 base. Column erect, with a membranaceous margin, winged on each side at the apex. Anther 

 two-celled. Pollen-masses 2, solid, caudicula linear, gland hooked. Epiphytes pseudobulbous. 

 Leaves plicate. Scape terminal, sheathed. Flowers showy. 



SPECIFIC CHARACTER. 



O. Cordatum ; scapo ascendente radicali ; sepalis lineari lanceolatis acuminatis ; petalis 

 conformibus longioribus ; labello cordato acuminato unguis lamella carnosa. apice biloba basi 

 bicristata ; columna pubescente clavata. Lindl. Bot. Reg. N. S. p. 50. 



Scape ascending from the root ; sepals linear, lanceolate, acuminate; petals of the same form, 

 but longer ; labellum cordate, acuminate, scale of the unguis fleshy ; apex two-lobed, two-crested 

 at the base ; column pubescent, club-shaped. 

 Odontoglossum cordatum. — Lindl. 

 1 Descr. — Pseudobulbs ovate oblong, compressed, smooth, bearing at the apex one leaf. Leaves 

 lanceolate, acute, soft and thin, scored with light transparent lines, their base sheathing the 

 pseudobulbs on each side. Scape simple, somewhat flexuose, ascending, sheathed. Raceme lax. 

 Flowers distant. Pedicels long. Bracteas acuminate, equal in length to the pedicels. Sepals 

 and petals linear-lanceolate, exceedingly acuminate, undulate, of a greenish-yellow, marked with 

 brown. Lip cordate, acuminate, white, the margin minutely spotted with brown, 



This elegant species of Odontoglossum, a native of Mexico, is in the collection 

 of Geo. Barker, Esq., of Springfield, by whom it was imported, and from whose 

 plant our drawing was made in the summer of last year. 



