64 ONCIDIUM. 



Scapes 12 — 18 inches long, pendulous, racemose, 7 — 10 or more flowered. 

 Flowers variable in size in different plants, the largest 1^ inches across 

 vertically; sepals linear-oblong, acuminate, yellow barred with red-brown, 

 the lateral two connate at their base ; petals clawed, sub-orbicular, bright 

 canary-yellow ; lip with three sub-equal bright yellow lobes, the lateral 

 two orbicular, the intermediate one broadly obcordate ; crest " tumid, 

 covered Avith conical yellow and brown tubercles, margins expanded 

 and pectinately toothed." Column wings deltoid. 



Oncidium Micropogou, Rchb. in Bonpl, 1854, p. 90. Id. Xen. Orch. I. p. 179, 

 t. 63, fig. 2. Lindl. Fol. Orch. Oacid. No. 40. Kegel's Gartcnfl. 1855, t. 136. 

 Bot. Mug. t. 6971. On. dentatum, Klotzsch ex Rclib. Xen. Orch. loc. cit. 



Oncidium Micropoyon was first cultivated in Consul Schiller's garden 

 at Ovelgonne, near Hamburgh, in 1853, and two years later it is 

 mentioned by Reichenbach in his Xenia Orchidacea as being in several 

 gardens on the Continent. The plants were supposed to have been 

 imported from Santa Catherina in southern Brazil, and they appear to 

 have died out within a few years as nothing more was seen of the 

 species till it was re-iutroduced by Messrs. Sander and Co. in 1886. 

 It is very near On. harhatum, from which it is distinguished by its 

 much larger flowers with differently shaped sepals, petals and crest. 

 The specific name has nearly the same meaning as harhatum, 

 "bearded," from //ik'/joc, ^'^ small/' and Trwywi', "a beard." 



On. nanum. 



Pseudo-bulbs none. Leaves from a creeping rhizome, oval-oblong, 

 3 — 6 inches long, dull pea-green spotted with red. Scapes decumbent, 

 panicled, the branches short and few flowered. Flowers | inch in 

 diameter ; sepals and petals similar, obovate-oblong, obtuse, incurved, 

 yellow spotted with red-brown ; lip bright yellow, transversely oblong 

 with two small auricles at the base ; crest large for the size of the 

 flower, two-lobed, the front lobe at right angles to the back one. 

 Column Avings linear, deflexed, and " tipped with a lucid gland." 



Oncidium nanum, Lindl. in Bot. Reg. 1842, misc. No. 30. Id. Fol. Orch. Oncid. 

 No. 107. Schomb. Reis. iu Brit. Guiana, III. p. 913. 



r:^£S^ A curious little plant deserving of notice on 



account of its richly coloured flowers. It was first 

 discovered by Schomburgk growing on the trunks of 

 trees on the banks of the Pomeroon River in British 

 Guiana, and sent by him to Messrs. Loddiges in 1842. 

 °"eii'iarged.°"'"' According to Dr. Lindley, it vs^as also detected by 

 Spruce near the junction of the Rio Negro with the Amazon. 



