Tab. 4148 



ONCIDIUM BICALLOSUM. 



Tivo-warted Oncidium. 



Nat. Ord. Orchide^.— Gynandria Monandria. 

 ONCIDIUM. (Vide supra Tab. 4130.) 



Oncidium bicallosum; bracteis ovatis membranaceis obtusis, labelli lobis 

 laterahbus abbreviatis intermedio maximo transverso emarginato obcor- 

 dato, crista bicallosa, tuberculis distantibus uno ante alter um posito 

 rugosis subtrilobis, columns; auriculis linearibus falcatim recurvis. 

 ■Lindl. 



Oncidium bicallosum. Lindl. in Benth. PL Hartw. p. 94. Bot Req 

 1843. t. 12. '• 9 



An inhabitant of Guatemala, whence it was introduced to 

 our stoves by Mr. Skinner, who sent it to Woburn Abbey, 

 as well as to Mr. Bateman : and it is now, with the Woburn 

 Orchideous collection, in the gardens of Kew, where we do 

 not find it difficult to flower. Our drawing was made in 

 October, 1843, and the plant is now again in blossom at the 

 time of drawing up this description in January, 1845. Dr. 

 Lmdley alludes to its close affinity with Oncidium Cavendishi- 

 anum," so much so as to seem a mere variety of it ; but it is 

 in reality quite distinct." My own investigation would rather 

 lead me to consider the two as forms of one and the same 

 kind, and that the species is liable to considerable variation ; 

 the more especially as our O. pachyphyllum, Bot. Mag. 

 t. 3807, is considered by Dr. Lindley a state of O. Cavendishi- 

 anum. To me, our present plant seems to correspond better 

 with Mr. Bateman's original figure of O. Cavendishianum, 

 than our O. pachyphyllum does. 



Descr. Pseudo-bulbs none. Foliage, as in our O. pachy- 

 phyllum, large, singularly thick and carinate, subcymbiform. 

 "eduncle arising from a scale at the base, and therefore radi- 

 cal* very long, bearing a many-flowered panicle, which varies 

 much in size and ramification. Flowers large, handsome, 

 yellow, slightly tinged with green on the sepals and petals: 



