OF THE GENUS COFFEA, LINN. 171 
Dr. Welwitsch found this species quite indigenous in primitive woods throughout 
nearly the whole district of Golungo Alto, as well as frequently cultivated ; he describes 
it as a small tree, 10—15 feet high, with the trunk 9-12 inches in diameter at the base, 
and with horizontal or even nodding branches, which in old age become unilateral; it 
belongs to the * Regio montoso-sylvatica’ of Welwitsch, which ranges from 8° to 10^ S. 
lat. and from 1000 to 2400 feet of altitude. 
The commercial varieties of common coffee depend mainly upon their shape, size, and 
colour. The shape of the berries and of the seeds is said to depend on the particular portion 
of the plant on which they grow, those near the extremities being often obliquely rounded 
by the abortion of one of the seeds in the fruit; the size and succulence depend on the 
nature of the locality—those berries grown in a dry, hot, and rocky climate being smaller, 
less fleshy, and of superior flavour; and the colour depends on the degree of maturity 
attained by the fruit at the time of gathering. Some or all of these differences may also 
partly depend on the variety of the plant employed; but it is not known for certain 
whether the Mocha coffee is a distinct variety, or, as seems more probable, only due to a 
particular treatment and cultivation. 
The following variety I have described, since it may prove to be a distinct species, 
characterized by white berries бе. ; the flowers are unknown. 
Var. leucocarpa, fruticosa glabra, foliis ellipticis vel ovali-oblongis breviter obtuse 
acuminatis basi cuneatis tenuiter coriaceis, venis lateralibus inconspicuis sub-6—7-jugis 
eglandulosis, stipulis e basi late ovata connata apiculatis petiolum brevem sub:equanti- 
bus, floribus axillaribus subglomeratis, bracteolis ovatis quam pedicelli breves fruc- 
tiferi brevioribus, baccis albis pisiformibus solitariis vel geminis, calycis limbo fructiferi 
obsoleto. 
Hab. ad Sierra Leone, legit mense Junio anni 1841 Th. Vogel! no. 174. 
Folia 3-6 poll. longa, 1-2 poll. lata. Ап species distincta ? 
2. COFFEA LIBERICA, sp. nova; Hort. Bull. Pl. XXIV. 
C. fruticosa vel arborea glabra lucida sempervirens, ramis horizontaliter patentibus, 
foliis elliptico-obovatis oblongisve breviter acuminatis basi euneatis vel obtuse angustatis 
subundatis tenuiter coriaceis 1—1-pedalibus, nervis lateralibus utrinsecus 8-10 in alis 
puncto secretorio instructis, stipulis late ovatis apiculatis basi connatis quam petioli sub- 
brevioribus, floribus axillaribus glomeratis subsessilibus pollicaribus, bracteolis connatis 
calyculatis depresso-deltoideis vel obtusis plerisque subtruncatis calyce brevioribus, 
calycis limbo annulari brevissimo, corollæ lobis 7-6 ovalibus obtusis tubum subzequanti- 
bus, antheris 7-6 omnino exsertis semipollicaribus, filamentis à-pollicaribus, stylo exserto 
bifido, baccis ellipsoideis -pollicaribus vel ultra, seminibus semipollicaribus vel ultra. 
C. arabica, Benth. in Hook. Niger Fl. p. 413 (1849), part., non Linn. 
Hab. ad Sierra Leone, legerunt Afzelius! et Daniell! (cult.); in Monrovia, testibus 
Th. Vogel et Daniell; etiam in Angola (Golungo Alto et Cazengo) legit Welwitsch ! 
The source ofthe Liberian coffee, and probably also of the Cape-Coast coffee; it is said 
to be far superior to C. arabica, Linn., having larger berries, of a finer flavour, and being 
at the same time more robust and productive. 282 
B 
