314 : THE ORCHID REVIEW. [OcroBER, rgr2. 
BULBOPHYLLUM GENTILII. 
THERE is a remarkable Tropical African Bulbophyllum in cultivation, of 
the B. calamarium group, that has the character of producing viscid pearl- 
like drops of nectar—for it is quite sweet—from the back of the dorsal 
sepal. It is allied to B. calamarium, Lindl., and has indeed been 
distributed under that name. It flowered with M.A. Van Imschoot, Mont- 
St-Amand, Ghent, as long ago as September, 1894, and was believed to be 
new, though it was not described. In September, 1903, a plant flowered at 
Kew which had been sent: from the Congo by M. Louis Gentil, in 1898, 
and was described under the name of B. Gentilii (Rolfe in Gard. Chron.., 
1g04, il. p. 266).. More recently a plant flowered in. the -collection of Sir 
Trevor Lawrence, Bart., at Burford, which had been sent from West Africa 
by Sir Trevor’s son, Captain Lawrence, and at the R.H.S. meeting held on 
August 27th last, another plant was exhibited by J. S. Bergheim, Esq., 
Belsize Court, Hampstead. There are. also at Kew dried specimens of the 
species that were collected in the Cameroons by Zenker (n. 832, 2690), and 
distributed from Berlin under the name of B. calamarium, Lindl. The 
species is allied to B. calamarium, Lindl., (Bot. Reg., 1843, Misc. p. 70)— 
~ which was based upon a plant collected in Sierra Leone by Colonel Fielding 
—but has stouter scapes and much larger concave bracts. Flowers of B. 
Gentilii have been figured by De Wildeman (Amn. Mus. Congo., Bot. ser. 5, 
ili. p. 181, t. 35, fig. 1-6). They are straw-coloured, with purple markings, 
and the lip is covered with spreading or reflexed dark brown hairs. The. 
pseudobulbs are strongly tetragonous, the leaves solitary, oblong, and 6 to 
7 inches long, the scapes stout, nearly two feet long, and the bracts 
numerous, large and concave. In 1896a species was described under the 
name of B. pheopogon, Schlechter (Engl. Jahrb., xxxviii. p. 157), but from 
the description I do not know how to separate it. This was based on 
specimens collected in the Cameroons, near Nyoke (Schlechter, n. 15791), 
and between Victoria and Kriegsschiffhasen (Winkler, n. 14a). Two or 
three other species of the B. calamarium group have been described but are 
not known in cultivation. . R. A. RoLiFe. 
DENDROBIUM IMTHURNII, Rolfe.—A distinct species of the D.  veratri- 
folium group, which is figured in the last issue of the Botanical Magazine 
(t. 8452). It was discovered in the Island of Efate, one of the New 
Hebrides, by Sir Everard im Thurn, late Governor of Fiji and High 
Commissioner of the Western Pacific, who sent a living plant to Kew, 
where it flowered recently. The stems are sometimes over four feet high, 
and the flowers are borne in elongated racemes, the colour being white, 
with lilac stripes on the side lobes of the lip. 
