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ONCIDIUM CRISPUM. 



LINNEAN SYSTEM. NATURAL ORDER. 



GYNANDRIA MONANDRIA. ORCHIDACE^E. 



GENERIC CHARACTER. 

 Oncidium (Swartz.) Perianthium explanatum. Sepala ssepius undulata ; lateralibus nunc 

 sub labello connatis. Petala conformia. Labellum maximum, ecalcaratum, cum columna 

 continuum varie lobatum, basi tuberculatum vel cristatum. Columna libera semiteres apice 

 utrinque alata. Anthera semibilocularis rostello nunc abbreviate nunc elongato rostrato. Pol- 

 linia 2, postice sulcata caudicula plana glandula oblonga. Herbse epiphytse, nunc pseudobul- 

 bosae. Folia coriacea. Scapi paniculati vaginati, rarius simplices. Flores speciosi lutei ssepius 

 maculati raro albi. 



Perianth explanate. Sepals more frequently undulate ; the lateral ones sometimes connate 

 beneath the labellum. Petals similar in form. Labellum very large, spurless, continuous with 

 the column, variously lobed, tuberculated or crested at the base. Column free, semiterete, 

 with the apex winged on both sides. Anther half 2-celled, rostellum sometimes short, some- 

 times elongated, beaked. Pollen-masses 2, furrowed behind, with a flat caudicula and an 

 oblong gland. Epiphytic plants sometimes with pseudobulbs. Leaves leathery. Scapes panicled, 

 sheathed, more rarely simple. Flowers handsome, yellow, most frequently spotted, rarely white. 



SPECIFIC CHARACTER. 



O. Crispum; pseudobulbis oblongis sulcatis rugosis diphyllis; foliis lanceolatis coriaceis 

 acutis ; scapo simplici multifloro ; sepalis recurvis undulatis obtusis lateralibus semiconnatis ; 

 fetalis duplo majoribus oblongis undulatis unguiculatis ; labelli lobis lateralibus cornuformibus 

 recurvis nanis, intermedio maximo unguiculato subrotundo-cordato undulato, crista dupiici serie 

 deltoidea dentata, columnae alis rotundatis denticulatis carnosis. (Lindl. gen. et spec. Orchid.) 



Pseudobulbs oblong, furrowed, wrinkled, 2-leaved ; leaves lanceolate, leathery, acute ; scape 

 simple, many-flowered ; sepals recurved, undulated, obtuse, the lateral ones semiconnate ; petals 

 twice as large, oblong, undulated, clawed ; lateral lobes of the labellum horn-shaped, recurved, 

 very small, the intermediate lobe very large, clawed, somewhat rotundo-cordate, undulated, 

 crest in a double series, deltoid, toothed, wings of the column rounded, minutely-toothed, fleshy. 



Oncidium Crispum. — Lodd. Bot. Cab. 1854. 



Descb. — Pseudobulbs bearing two leaves ; leaves oblong lanceolate, somewhat obtuse, apicu- 

 late at the apex, dark green, spotted with purple towards the base posteriorly, with a deep 

 furrow down the centre, and an elevated ridge or keel extending, on the under surface, from the 

 base to the apex. Scape simple, many-flowered. Flowers large (nearly three inches in dia- 

 meter), and very remarkable in colour, being of a rich reddish brown, approaching to a bright 

 bronze, the lip marked at the base with bright yellow, as are also the minute lateral lobes ; the 

 claws of the petals yellow spotted with brown ; column with its wings yellow behind, reddish 

 brown in front ; stigmatic cavity large, oval ; crest yellow, spotted with brown. 



