72 ONCIDIUM. 



cuneate, concave, the lateral two connate into an oblong, spatlinlate 

 blade, bidentate at the apex and concealed by the lip ; petals like 

 the dorsal sepal ; lip sub-qnadrate, four-lobed, the lobes rounded and 

 nearly equal ; crest three-lobed, in front of which is an ochreous spot. 

 Column wings ovate-oblong, rose-pink. 



Oncidium pulchellum, Hook, in Bot. Mag. t. 2773 (1827). Lindl. Gen. et Sp. 

 Orch. p. 206 (1832). Id. in Bot. Reg. t. 1787 (1836). Id. in Paxt. Fl. Gard. I. 

 sub. t. 33. Id. Fol. Orch. Oncid. No. 31. 



First discovered bj Mr, C. S. Parkes in Demerara growing on 

 trees, who sent it to the Liverpool Botanic Garden, w^here it 

 flowered for the first time in this country in June, 1827. Many 

 years afterwards it was detected by Schomburgk on the southern 

 slopes of the Rorairaa, growing on sandstone rocks and flowering in 

 November. It is also a native of Jamaica, where it has been 

 gathered by several botanists. Although one of the prettiest of the 

 small Oncids it is not often seen in cultivation. 



Oncidium pulchellum is one of a small group o£ species dispersed 

 over the West Indies and neighbouring parts of Central and South 

 America, distinguished by the absence of pseudo-bulbs and by their 

 rigid equitant leaves, that is to say — the front surfaces of the leaf 

 on each side of the mid-nerve are brought into contact and grow 

 together except at their edges^ the leaf then often resembles a 

 reaping-hook with a groove along the back.* 



On. pulvinatum. 



Pseudo-bulbs orbicular-oblong, compressed, 1^ — 2 inches in diameter, 

 monophyllous. Leaves rigid, erect, oblong, acute, 9 — 12 inches long 

 and 2 — 3| inches broad. Scapes slender, flexuose, 5 — 7 or more feet 

 long, loosely paniculate. Flowers veiy numerous, an inch in diameter; 

 sepals and petals similar and sub-equal, clawed, oval-oblong, the upper 

 sepal concave and bent forwards, the basal half red-brown, the apical 

 half yellow ; lip three-lobed, light yellow spotted with red, the side 

 lobes rotund with fimbriate margin, the intermediate lobe transversely 

 oblong, emarginate ; crest a circular papillose cushion, Avhitish spotted 

 with red. Column wings rounded. 



Oncidium pulvinatum, Lindl. in Bot. Reg. 1838, misc. No. 115. Id. 1839, t. 42. 

 Id. in Paxt. Fl. Gard. II. icon. xyl. No. 126. Id. Fol. Orch. Oncid. No. 118. 



First cultivated by Mr. Richard Harrison, of Aigburth, Liverpool, 



who received it from his brother William at Rio de Janeiro in 



1838, and he probably obtained it at Novo Friburgo, its known 



* The section Equitantia of Liudley and Bentham. 



