and a half wide. Sepals are a little smaller than the petals, the three-lobed lip 
being large and spreading. The whole of the flower is bright golden-yellow with a 
few dark brown spots on each segment. Flowers in Summer. Treatment as for 
O. ampliatum. 
ONCIDIUM FLEXUOSUM. Native of Brazil. 
A hardy and variable species with oval, flattened and sulcate pseudobulbs, 2 inches 
long with a pair of oblong, strap-shaped, bright green leaves, each about 6 inches 
long. Flower spike large, branching and many flowered. Blooms rarely more 
than three-quarters of an inch in diameter, with small, narrow, recurved sepals and 
petals, yellow, barred with lightish brown. Lip yellow flecked with red, the front 
lobe being kidney-shaped, the base narrowed and the crest warted and prominent. 
Flowers principally in Spring. Treatment as for O. cornigerum. 
ONCIDIUM FORBESII. Native of Brazil. 
A very striking species with typical oval, flattened, sulcate pseudobulbs with 
brown sheaths and leathery, strap-shaped leaves about 9 inches long and dark 
green in colour. Scape about 12 inches in length, carrying nine or ten flowers 
each 2 inches in diameter. Sepals ovate, petals twice as long as the sepals, spathu- 
late, waved and stalked at the base. The whole flower is a glossy red-brown, 
margined with bright yellow, the crest being spotted with red. Flowers in 
Autumn and lasts well. Culture as recommended for O. cornigerum. 
ONCIDIUM HAEMATOCHILUM. Native of Trinidad. 
This species differs from most of the other Oncidiums in that the pseudobulbs 
are absent, the oblong, flat, thick, stiff leaves grow from a stout, creeping rhizome. 
The leaves are from 6 to 9 inches long and about 2 inches wide, dark green in 
colour with a few brown spots. The flower spike, erect and up to about 2 feet 
tall, carries from ten to thirty flowers each about 13 inches across with wavy, 
tongue-shaped sepals and petals, yellowish-green in colour, spotted with deep 
reddish-brown. Lip is narrow at the base with two ear-like side lobes, the front 
being broadly oval and undulated, with a small raised, lumpy crest. It is bright 
crimson in colour with darker spots in the margins. Flowers in late Autumn and 
lasts well. This plant, by reason of its manner of growth, is a bad traveller and 
is, therefore, difficult to obtain. It requires very warm, moist treatment through- 
out the Summer and should be kept in a heated glasshouse, preferably suspended 
over a fish-pond. After growth has been completed it should be transferred to a 
cooler, drier situation. 
ONCIDIUM INCURVUM. Native of Mexico. 
Another small flowered species with ovate, compressed pseudobulbs, somewhat 
furrowed, about 2 inches long and topped with a couple of sword-shaped, pointed, 
dark green leaves about 9 inches long. Flower spikes long and considerably 
branched, and gracefully arched and covered with attractive blooms, each about 
14 inches across. Sepals and petals are narrow, wavy and free, and are white with 
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