80 ONCIDIUM. 



(nou-classical) is a fanciful one derived from (T(f)aKi\oi\ "tremor" 

 or " agitation." * 



On. sphegiferum. 



Pseudo-bulbs broadly oval, almost orliicular, 1 — H inches in diameter, 



much compressed, monophyllous. Leaves elliptic-oblong, 6 — 8 inches 



long, leathery, pale green. Scapes 3 — i feet long, panicled, many 



flowered. Flowers about an inch in diameter, bright orange with a 



reddish stain at the base of all the segments ; sepals and petals 



clawed, the former oval, the latter oblong, apiculate ; lip sub- 



pandurate in outline, the basal lobes rounded with denticidate margins, 



the front lobe transversely oblong, emarginate, of a lighter orange than 



the sepals and petals ; crest oblong, cushion-like, minutely papillose. 



Column wings narrowly oblong. 



Oncidiiun sphegiferum, Lindl in Bot. Reg. 1843. misc. 23. Id. Paxt. Fl, Gard. II. 

 icon. xyl. No. 124. Id. Fol. Orch. Oncid. No. 117. Rolfe in Gard. Chron. III. 

 s. 3 (1888), "p. 716. 



First introduced from Brazil by Messrs. Loddiges 



in 1842 — 3, but we find no further evidence of its 



being in cultivation till 1887, when a plant, supposed 



to have been imported with Oncidiiim divaricatum 



or 071. ^ulvinatum, flowered in our Chelsea nursery. 



An herbarium specimen was gathered by Miers at 



Corcovado, near E-io de Janeiro, thus indicating that 



its habitat is within the restricted area occupied by 



oneidiuin sphegiferum. the members of the Pulvinata group, to which it 



belongs.t Its bright orange flowers render it distinct among the 



cultivated Oncids. 



On. stramineum. 



"Pseudo-bulbs none. Leaves 6 — 8 inches long, oblong-lanceolate, 

 sub-acute, contracted into a short, stout petiole, very rigid, thick and 

 coriaceous. Panicle stout, inclined or drooping, more or less branched. 

 Plowers crowded, f inch across, white speckled with red on the lateral 

 sepals, lip and column ; sepals and petals widely spreading, almost 

 orbicular, the dorsal sepal concave ; lip very shortly clawed, lateral lobes 

 oblong, obtuse, falcately recurved; middle lobe broadly stalked, kidney- 

 shaped, smaller than the lateral lobes ; warts of the crest two on each 

 side, more or less confluent. Colunni with broad wings." — Botanical 

 Magazine. 



Oncidium stramineum, Lindl. in Bot. llcg. 1838, misc. No. 63. Id. 1840, t. 14. Id. 

 Fol. Orch. Oncid. No. 123. Bot. Mag. t. 6254. 



* In the Gardeners Chronicle, 1842, p. 382, Dr. Lindlej- calls it the scorched Oncidium. 

 t See Oncidium divaricatum, p. 34. 



