LIST OF ORCHIDE7E. 
35 
white, with the breast blotched with deep lilac. This Species requires pot 
cultivation in a mixture of turfy peat, sphagnufn, and small potsherds, with a 
little elevation and a free drainage, as it requires to be freely watered 
during the growth ; if in robust health, the temperature should range from 
60° to 70°. — Native of Mexico. 
271. Oncidium tetrapetalum (from tetra, four, and petalon, a petal). A 
most beautiful little species well deserving a place in every collection; the 
flowers are produced on a short spike; the sepals and petals white, spotted, 
streaked, and barred with brown; column white, with two large spotted 
ears; labellum white, with the base yellow and brown, as also in each divi¬ 
sion at the base. This species may be grown on a log of wood covered 
with sphagnum, or in a pot with a mixture of turfy peat, sphagnum, and 
small potsherds, and but a slight watering; temperature, 60° to 70°.— 
Native of Jamaica and Cuba. 
272. Oncidium iridifolium (pigmy Oncidium). This is a very curious 
and extremely small species, the leaves being scarcely 11 inch long ; the 
flower-stem is little more than 2 inches long ; the flowers small, but very 
neat and pretty, being about three parts of an inch across, yellow, streaked 
with red. This species should be grown on a log of wood covered with 
sphagnum. Very little water will be required, as it likes a dry situation ex¬ 
posed to the sun ; temperature, 60° to 70°. — Native of La Guayra. 
273. Oncidium tricolor (three-coloured). Plant destitute of bulbs ; leaves 6 
inches long, triangular shaped, with a few faint spots of red towards the base 
of each ; flower-spike from 8 to 12 inches long, branched ; the colour of the 
flowers beautifully varied with yellow and white, and occasionally blotched 
with blood-coloured spots. This species will succeed either on a log of 
wood or in a pot sufficiently drained, in a mixture of turfy peat, a little 
sphagnum, and small potsherds, at no time requiring much water, and a tem¬ 
perature of 65° to 70°. — Native of Jamaica. 
274. Oncidium pulvinatum (cushion lip). Plant pseudo-bulbous; bulbs 
nearly flat, with two sharp angles; leaves 10 inches long, and 3 inches broacf, 
crisp, erect; flower-spike 7 feet long, with numerous side branches; the 
sepals and petals of the flowers brownish yellow ; labellum winged, yellow, 
spotted with pale brown. This species requires pot cultivation in the usual 
mixtui'e, with a slight elevation, and a liberal supply of water during its 
growth; temperature, 65° to 70°. — Native of Brazil. 
275. Oncidium unicorne (the breast of the labellum having only one 
horn). Plant pseudo-bulbous ; bulbs 2 inches long, a little grooved; leaves 
mostly single, 6 inches long, and 1 inch broad ; flower-spike from 6 to 9 
inches long ; flowers pale yellow, with a blotch of pale brown on the la¬ 
bellum. This species may be grown either on a log of wood or in a pot well 
drained, with the same treatment and temperature as for 0. tetrapetalum. — 
Native of Brazil. 
276. Oncidium crispum (curled lip). Plant pseudo-bulbous; bulbs 3 
inches long, i inch broad ; leaves in pairs, 8 inches long, and nearly 3 inches 
broad; flower-spike from 2 to 3 feet long; each flower is two inches across, 
and of a handsome dark chestnut colour ; a single specimen when well 
grown will produce from 50 to 60 flowers. There are also two or three 
varieties of this species. It should be grown in a pot, well drained, with the 
same treatment and temperature as for O. deltoideum. — Native of Brazil. 
277. Oncidium Cebolleti. Plant destitute of bulbs ; leaves of a rush-like 
form, slender, and about 18 inches long; flower-spike 2 feet long; flowers 
yellow, slightly spotted with reddish brown; treatment and temperature the 
same as O. crispum. — Native of Demerara. 
278. Oncidium junceum (rush-leaved). Plant destitute of bulbs ; leaves 
1 foot long ; flower-spike 8 inches long ; the sepals and petals small; colour 
