2S 



ONCIDIUM PAPILIO. 



(Butterfly Oncidium.) 



LINNEAN SYSTEM. NATURAL ORDER. 



GYNANDRIA MONANDEIA. ORCHIDACEjE. — (lAndjl.) § VANDEiE. 



GENERIC CHARACTER. 



Oncidium (Swabtz.) Perianthium explanatum. Sepala ssepius undulata : lateralibus 

 nunc sub labello connatis. Petala conformia. Labettum maximum, ecalcaratum, cum columna 

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

 utrinque alata. Anthem semi-bilocularis, rostello nunc abbreviato, nunc elongato rostrato. 

 Pollinia 2, postice sulcata, caudiculd plana, glanduld oblonga. Herbae epiphytse, nunc pseudo- 

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

 ssepius maculati, rarb albi. — Lindl. gen. et spec, orchid. 



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, apex 

 winged on both sides. Anther half-2-celled, rostellum sometimes short, sometimes elongated, 

 beaked. Pollen-masses 2, furrowed behind, caudicula fiat, gland oblong. Epiphytic plants, 

 sometimes with psuedo-bulbs. Leaves leathery. Scapes panicled, sheathed, more rarely simple. 

 Flowers handsome, yellow, frequently spotted, rarely white. 



SPECIFIC CHARACTER. 

 O. Papilio (Lindl.) Pseudo bulbis subrotundis compressis rugosis monophyllis; foliis oblongis 

 coriaceis obtusis maculatis ; scapo perennante debili ancipiti articulato apice paucifloro ; sepalo 

 supremo petalisque linearibus longissimis basi angustatis, sepalis lateralibus oblongis revolutis 

 undulatis labello longioribus ; labelli lacinia intermedia emarginata subrotunda, crispa basi valde 

 augustata, lateralibus rotundatis ; crista glandulis formam ranse cubantis referentibus ; columnce 

 alis serratis. • 



Descr. — Pseudo-bulbs somewhat round, compressed, rugose, 1-leaved ; leaves oblong, leathery, 

 obtuse, spotted ; scape permanent, slender, 2-edged, jointed, few-flowered at the apex ; upper sepal 

 and linear petals very long, narrowed at the base ; lateral sepals oblong, revolute, waved, longer 

 than the lip ; middle lobe of the lip emarginate, somewhat round, curled at the margin, very 

 much narrowed at the base ; lateral lobes rounded : glands of the crest resembling the form of 

 a frog couchante ; wings of the column serrate. 



Oncidium Papilio. — Lindl. in Bot. Reg. t. 910. Hooker in Bot. Mag. 2795. Loddiges 

 Bot. Cab. t. 1086. 



The leaves are one-nerved, striated, obtuse or acute, varying, in fact, very 

 considerably in different plants ; they are frequently spotted on both sides of the 



