ANGRACUM CHAILLUANUM. 
[Pate 440.] 
Native of Western Africa. 
Epiphytal. Stem erect, terete, some six inches or a foot high, bearing ligulate, 
distichous, imbricating leaves, which are linear-oblong, some six or eight inches in 
length, by an inch and a half in breadth, unequally two-lobed at the apex, undu- 
lated at the margins, leathery in texture, and rich deep green. Racemes drooping, 
about a foot long, many-flowered. Flowers of the purest white; bracts ovate- 
acuminate, brown; sepals and petals, together with the Jip, all similar, the lateral 
sepals, however, are somewhat arcuate at the base. Spur slender, flexuose, some 
six inches long, yellowish white, with a greenish tinge. Column short and_ stout, 
the rostellum and anther case both produced into an obtuse beak. 
Aneracum Cuarttuanum, Hooker fils, Botanical Magazine, t. 5589; Williams’ 
Orchid-Grower’s Manual, 6th ed., p. 115. 
ANGR&cUM aRcuATUM, Lindley MSS. in the Hookerian Herbarium. 
The plant we have now under consideration is a very beautiful species, and 
one that has much improved under the cultivators’ hands; it was originally sent 
home to the Royal Gardens at Kew, by the celebrated traveller M. Du Chaillu, 
on his return from his courageous journey into the wilds of Western Africa, upon 
which occasion he made known the discovery of the savage Gorilla in the Gaboon 
district. Some plants of the same species had also been sent to Kew, from the 
Nun River, by Herr Gustav Mann, and the dried specimens had been named by 
Dr. Lindley in the Hookerian Herbarium, Angraecum arcuatum, but from this South 
African species the plant from the west is abundantly distinct, and this plant was 
named by Hooker fils, in compliment to M. Du Chaillu, in 1866, when the plant 
first flowered in this country. For the pleasure of adding such a fine figure to 
the pages of the ALBUM we are indebted to the kindness of F. G. Tautz, Esq., 
the plant having flowered with him when his collection was intact and he still 
occupied the well-known Studley House at Shepherd’s Bush, where our artist made 
this very excellent sketch. It is a stout-growing epiphytal plant, having two- 
ranked imbricating leaves, which are unequally bi-lobed at the apex, undulated at 
the margins, leathery in texture, and rich deep green in colour. The raceme is 
drooping, as long or longer than the leaves, bearing numerous flowers which are 
_. pure white; the segments are about equal, narrowly lanceolate, recurved, its very 
long spur being tinged with pale yellowish green. This species, being a native of 
one of the hottest and wettest parts of the world, consequently requires to be 
