490 orchid-grower's manual. 



yellowish ochre, coloured with brownish mauve at the base of 

 the callus. — Native Country not stated. 



0. luridum, Lindley. — A peculiar bulbless epiphyte, with 

 large thick solitary carinate leaves upwards of a foot long, 

 dull green and spotted, and a tall slender scape bearing a 

 panicle of large olive-green flowers, having bro\\'n confluent 

 blotches which nearly cover the surface ; the sepals are 

 clawed undulated, the dorsal sepal roundish rhomboid, the 

 petals larger, and the lip three-lobed with the central lobe 

 broadly kidney- shaped and emarginate ; the flowers are freely 

 produced. — Tropical America. 



Fig.— Bot. Reg., t. 727 ; Bot. Mag., t. 3603. 



0. luriduin DodgSOni, Williams. — A splendid variety, named 

 in compliment to the late R. B, Dodgson, Esq., of Blackburn. 

 The leaves are very thick and fleshy, but broader and longer 

 than in 0. luridum; the flower spikes are seven feet long, 

 much branched, and bearing between three and four hundred 

 flowers on each ; their colour is orange and yellow, barred 

 with dark brown. It should be potted in peat and sphagnum 

 moss, and treated with a liberal supply of both heat and 

 moisture. — West Indies. 



0. luridum guttatum, Lindley. — A very rich and 

 stately variety, producing panicles three to four feet long of 

 gay flowers, which are yellow spotted all over with bright 

 orange-red, the base of the lip being of a rosy crimson. It 

 blooms during the summer months, and continues in per- 

 fection a long time. This is best grown in a pot with peat. — 

 Jamaica. 



Fia.— Bot. Reg., 1839, t. 16. 



Syn. — Oncidiumcuneatum; O.Borjdii; Epidendruvi guttatum ; Cymbidium 

 guttatum. 



0. macrantlium, Lindley. — This magnificent Oncidium is a 

 great acquisition to the genus, being one of the handsomest 

 species yet introduced. It is of free growth, with large ovoid 

 pseudobulbs, lanceolate loriform acuminate dark green leaves, 

 and scapes several feet long, twining, branching, and many- 

 flowered. The flowers are from three to four inches across, 

 the clawed sepals and petals orbicular oblong broad thick and 

 fleshy, the upper one of a golden olive brown, the two lateral 

 sepals deep orange yellow, and the two petals of a clear bright 

 yellow ; the lip is hastate, much smaller than the petals, 



