508 oECHiD grower's manual. 



flowers, each being from three to three and a half inches 

 across and spreading ; the dorsal sepal is erect oblong-lanceo- 

 late acuminate, larger than the rest, the lateral ones being 

 decurved, the petals are also lanceolate spreading, all these 

 being pure white ; the lip is one inch long, trifid, with erect 

 conchoid subquadrate lateral lobes, the central one lanceolate 

 triangular, the apex tapered and recurved, white marked with 

 broad reddish purple streaks. It flowers in October and 

 November. — West Tropical Africa. 



'FiQ.—Bot. Mag., t. 6471 ; Xenia Orch., iii. t. 213; Gard. Chron., N.S., xii. 

 621, fig. 102—3 ; Id., xviii. 601, fig. 87. 



PaLUMBINA, Bchh.f 

 (Tribe Vandese, subtribe Oncidie^,) 



The only species referred here was at first very doubtfully 

 stationed in Oncidium by Lindley, and next separated from 

 Oncidium under the name of Palumhina by Reichenbach. 

 Bentham puts it back into Oncidium. It appears to difier in 

 its lateral sepals being connate into one, forming a short con- 

 cave emarginate organ, in its peculiar "tabula stigmatica," 

 and, according to Lindley, in its four pollen-masses. It is a 

 Guatemalan plant. 



Culture. — A rare and interesting species, which thrives best 

 under rather cool treatment. It will do in a pot, with peat, 

 moss, and good drainage, but it does not require much water 

 at the roots at any time. It should be grown in the cool 

 house. 



P. Candida, Bchb.f. — This interesting plant is very distinct 

 in habit and appearance. The pseudobulbs are narrow com- 

 pressed ligulate, bearing each a linear or cuneate-ligulate pale 

 green leaf; the scapes are slender, dark purplish, bearing a 

 raceme of several flat waxy white flowers, which continue in 

 perfection a long time. Of these the sepals are oblong sub- 

 acute, the lateral ones connate to the tip, the petals larger, 

 also oblong, and the lip elongate ovate. — Guatemala. 



'FiG.—Bot. Mag., t. 5546 ; Gard. Chron., 1865, 793, with fig. ; Id., N.S., 

 XX. 233, fig. 35. 



Syn. — Oncidium candidum. 



