AUGUST, 1903.] THE ORCHID REVIEW. 245 
THE GENUS CAMPYLOCENTRUM. 
Tue flowering of the rare little Campylocentrum micranthum in the 
collection of J. J. Neale, Esq., of Penarth, calls attention to a genus whose 
history has never been properly cleared up, namely Campylocentrum. It 
was established by Bentham in 1881 (Journ. Linn. Soc., xviii, p. 337) to 
replace Todaroa, of A. Richard and Galeotti, because their name was 
already in use for a genus of Umbellifere. Reichenbach united the 
species, together with some other plants, to Lindley’s genus Aéranthes, 
which is now recognised as quite distinct. Nearly twenty species are 
known, though some very imperfectly. All are American. 
C. MICRANTHUM was described and figured by Lindley as early as 1836, 
under the name of Angraecum micranthum (Bot. Reg., t. 1772), from a 
specimen which flowered with Messrs. Loddiges, of Hackney. It was at 
first said to have come from Sierra Leone, but this was soon found to be 
erroneous, and Lindley mounted the drawing with Surinam specimens, and 
corrected the record on the sheet. Reichenbach called it Aéranthus 
micranthus, and also made a second species under the name of A. 
jamaicensis (Walp. Ann., vi., p. 901), which Grisebach afterwards united 
with it. Angraecum Lansbergii, Rchb., f. (Nederl. Kruidk. Archtef, iv, p. 
316), is a Surinam plant which I am unable to separate. If these are all 
one the species is common and widely diffused, being found in Guiana, 
Brazil, the Lower Orinoco, Trinidad, Jamaica, and Cuba. Angrecum 
brevifolium, Lindl. (Bot. Reg., 1840, sub. t. 68), is also very nearly allied, 
but the available specimens are in fruit only. The Mexican Angraecum 
Schiedei, Rchb. f. (Linn@a, xxii, p. 857) I do not know how to distinguish, 
but it may be added that several of the specimens that may belong here are 
too incomplete for exact determination. 
C. PUGIONIFORME (Angraecum pugioniforme, Klotzsch, Ind. Sem. Hort. 
Berol. App., 1851, p- 12) is the only other species which seems to have been 
in cultivation, having been described from a plant in the Berlin Botanic 
Garden, which had been sent from Caraccas by Wagener. It has, how- 
ever, long been lost sight of, but, according to the description, is quite 
different from the preceding. 
C. ORGANENSE (Aéranthus organensis, Rchb. f. in Walp. Ann., vi. p. 901) 
is a Brazilian species, readily distinguished by its broadly ovate bracts, and 
short saccate strongly curved spur. 
C. INTERMEDIUM (Aeranthus intermedius, Rchb. f. et Warm., Oita. Bot. 
Hamb., p. 91; Viddensk. Meddel., 1884, p. 852, t. 7, fig. 7), belongs to the 
same group, but has a very short straight spur. It was collected by 
Warming at Lagoa Santa, in Brazil. 
C. potysTACHYUM (Angraecum polystachyum, Lindl. Bot. Reg., 1840, 
