ONCIDIUM MARSHALLIANUM. 
[PLaTE 240.) 
Native of Brazil. 
Epiphytal. Pseudobulbs ovoid-cylindrical, terete, furrowed, two to four inches 
— long. Leaves oblong-lanceolate acute, six to eight inches long, channelled, of a 
bright green above, paler beneath. Scapes radical, supporting a very large, broad, 
much-branched panicle, the rachis green. Flowers large and very numerous, on 
longish slender green pedicels, brilliantly coloured; sepals small, obovate, apiculate, 
concave, the dorsal one about one-third of an inch long, the lateral ones connate, 
oblong, placed behind the lip, greenish yellow, covered by a series of transverse 
bars of deep chestnut-brown; petals stalked, fiddle-shaped, the border undulately, 
erisped, the apex bilobed, and the surface bright golden yellow, the disk spotted 
with spots or blotches of chestnut-brown; lip very large, narrowed at the base into 
a distinct claw, which is auricled, the auricles oblong-obtuse, ascending, yellow 
spotted as is the claw with crimson-red; behind the claw is seated a_ tuberculate 
beaked callus; the broad expanded limb is transversely oblong, deeply two-lobed at 
the apex, plane, and of a clear bright yellow colour. Column dwarf, with small 
quadrate wings. 
OncipIum MarsHariianum, Reichenbach fil., in Gardeners’ Chronicle, 1866, p. 
682; Hooker fil., Botanical Magazine, t. 5725; Gartenflora, t. 979; Floral Maga- 
mine, 2 ser., t. 285. 
This fine Brazilian Oncidium is without doubt one of the most brilliant and 
showy of Orchids, its branching infloresence of large-sized bright yellow flowers being 
very effective in a group. It is of graceful habit, and makes a grand plant for 
decorative purposes; indeed, no collection should be without several plants of it, 
as they produce such a fine effect when overhanging other kinds of Orchids. 
There are varieties of this plant which differ in size and colour, some having larger 
flowers, others having stronger flower spikes, but all this greatly depends on the 
strength of the plant. Our energetic collectors are annually sending home large 
importations, which are required, as they have such free blooming propensities - that 
the plants get exhausted, unless they have great care bestowed on them. The 
form we now figure is the ordinary one, showing a small part of one of its 
panicles. The sketch reproduced in our illustration was taken in the Victoria and 
Paradise Nurseries, where we have had several large specimens flowering in great 
perfection during the present year. : 
Oncidium Marshallianum is a fine evergreen species, and is certainly one of 
the most useful of Oncids, The pseudobulbs are ovoid-cylindrical, two to four 
inches in length, and bearing at their apex a pair of coriaceous oblong-lanceolate 
