OcTOBER, 1914.] THE ORCHID REVIEW. 315 
Odontoglossum grande is now in spike or bloom. Keep a sharp look- 
out for slugs, which are very partial to them. If coiton wool be wrapped 
round the base of each spike, and poisoned bran be placed on small pieces 
of cardboard and stood about on the staging, these lovely flowers should be 
immune from attacks. Should foggy weather set in, the roof glass must 
be frequently washed, or the house would quickly become gloomy, and weak 
growth would result. 
Vanda ccerulea has usually finished blossoming by this time, and, if in 
need of fresh moss, can have it renewed, but since little further growth is 
made until the following spring, this operation can easily be deferred. 
Sponge the leaves at frequent intervals. This also applies to all the other 
Orchids in the house, and should the dreaded ‘“‘ spot” make its appearance, 
this must be cut out and a little slaked lime rubbed in the affected leaf, 
keeping the plant somewhat drier for some time. et. ie generally 
caused by excessive moisture accompanied by too low a temperature, and 
drip from the roof should be guarded against. 
BULBOPHYLLUM RIGIDUM.—A curious Bulbophyllum has been sent to 
Kew for determination by Messrs. Sander & Sons, St. Albans, which proves 
to be the one described by Messrs. King & Pantling as B. rigidum (Orch. 
Sikkim Himal., p. 69, t. 94), a species whose history has been much 
confused. It is the Bulbophyllum conchiferum Hook. f. (Fl. Brit. Ind., v- 
P. 766), but not Reichenbach’s plant of that name, which is an allied 
Species collected by Thomas Lobb in the Khasia Hills. There are dried 
Specimens of both at. Kew, the former collected in Sikkim by Griffith, C. B- 
Clarke, and J. S. Gamble, the altitude being given as 3000 to 4000 feet, 
while King and Pantling give the altitude as 6000 feet. It has previously 
appeared in cultivation, having been sent for determination from the 
collection of H. J. Elwes, Esq., in August, 1894, without record of locality, 
and before the confusion had been detected. It belongs to the ebulbose 
Section of the genus, and is allied to B. apodum, Hook. f. - The paves: Ste 
tect, 6 to 10 inches long, and narrowed at the base into a petiole, which 
‘ptings direct from a node on the stout rhizome, the pseudobulbs being 
obsolete, as in other species of the section. The scapes are nearly as long 
as the leaves, and the flowers are racemose, lax, and the colour brownish 
yellow or greenish, with a few brown streaks at the base. It may be added 
that in the Flora of British India, B. rufinum, Rchb. f. Xen. Orch., iil. P- 44, 
t 219, fig. 1, is given as a synonym of B. conchiferum, but this 1s a mistake, 
2. tafnum has large pseudobulbs, and arching spikes of buff-coloured 
flowers streaked with red, It is indeed nearly allied to B. cupreum, Lindl. 
tis a Burmese species, and is often seen in cultivation in botanical 
ollections.—R.A.R. 
