May 25, 1893. ] 
JOURNAL OF HORTICULTURE AND COTTAGE GARDENER. 
419 
Odontoglossum citrosmum. 
This is an Orchid which well repays the little trouble needed 
to grow it well, the long pendant racemes making it one of the 
very^ best for hanging baskets. It must be liberally treated to 
obtain the best results. A sunny position in the cool end of the 
Cattleya house will suit it perfectly. It requires plenty of water 
while rnaking its growth, but when this is complete it must be 
kept quite dry until the flower spikes show in the top of the young 
growths in the spring. 
Oncidium cucullatum. 
Good forms of this pretty little Orchid are very attractive, and 
the length of time the flowers remain fresh is greatly in their 
favour. The flowers are bright rosy purple, with darker sjrots on 
Birmingham. This statement cannot be confirmed, as the specimen 
is not preserved in the author’s herbarium. Schiede’s specimen is 
very imperfect, having lost all its flowers, though there are four 
loose ones in a capsule attached to the sheet. One only has the lip 
denticulate at the apex, as in Lindley’s description and drawing the 
others evidently belong to another species, but none of them agree 
with the one now described. IE the flower just mentioned really 
belongs to Schiede’s specimen, P. carinatum has flowers scarcely 
half as large as those of the present species. The lobes of the 
sepals of P. Lindleyi are deep orange-red or biick-red in colour, 
the tube and the rest of the flower light green. It may be placed 
next to P. Loddigesi, Lindl. Good specimens of P. carinatum, 
Lindl., and P. errarginatum, Lindl., would be we’come, as both are 
very imperfectly knovn.—(A'eio Bulletin.') 
Fig. 75.—DENDROBIUM THYRSIFLORUM. 
the lip, A cool airy position, with plenty of moisture at the root, 
will ensure healthy plants.—H. R. R. 
Physosipiion Lindleyi. 
This is the largest-flowered Physosiphon known, the flowers 
measuring fully seven lines in length. A specimen, sent for deter¬ 
mination by Mr. F. W. Moore, Glasnevin Botanic Garden, Dublin, 
in April, 1892, without any note of its origin, proves identical with 
a dried one collected by M. J. Linden as long ago as 1840 near 
Chiapas, Mexico. This specimen is wrongly labelled by Lindley 
“Physosiphon carinatum,” a species described by him in 1838 
(“ Bot. Reg.,” xxiv., Misc., p. 72), from a specimen collected by 
Schiede, near Sosocola, Mexico. Lindley also states that it had 
been obtained in a live state from Mexico by Mr. G. Barker of 
Bulbophyllum racemosum. 
This distinct Bulbophyllum is nearly allied to B. anceps (Rolfe, 
in “ Lindenia, viii., p. 33, t. 351), which is also a native of Borneo. 
In general habit the two resemble each other quite as much as they 
differ from most other known species of the genus, but the present 
species has much larger flowers than B. anceps. They are honey- 
coloured, the dorsal sepals and petals spotted with maroon, and the 
lateral sepals minutely spotted on the upper half, and striped on 
the lower one with the same colour. The lip is purple, covered 
with numerous black dots, paler near the tip. The face of the 
column, also its foot, is spotted with purple on a pale ground. It 
flowered, says the “ Kew Bulletin,” in the collection of Sir Trevor 
Lawrence, Bart., of Burford, Dorking, last August, when it was 
sent to Kew for determination. 
