ON TWO NEW PLANTS. 13 
branches and are succeeded by large seed-pods, 18-20 inches 
long. The Indians call the tree Koa-toi. The genus it is 
my wish to dedicate to Her Imperial Majesty the Empress 
of Russia. It belongs to a group of Papilionacee, the So- 
phoree, which form a connecting link with the Cesalpiniea, 
in some respects approaching Swartzia. 
9. BARBACENIA ALEXANDRINÆ. Schomb. 
Caudice frutescente, foliis ensiformibus subulato-acumi- 
natis integerrimis sericeis, scapo foliis breviore apice glan- 
dulis subsessilibus verrucoso, perigonii tubo (5-6 poll.) ovario 
longiore glanduloso-hirto, staminibus 18 in phalanges 6 dis- 
positis. 
Has. Roraima range of mountains, British Guiana, in 
about 5 degrees of north latitude, growing on sandstone 
hills, at an elevation of between 3-4000 feet above the 
level of the sea. 
This fine species of Done I likewise propose should 
be honoured with the name of Her Imperial Majesty the 
Empress of Russia, the sister of the present King of Prussia. 
It is remarkable in the group of plants to which it belongs, 
for the great size of the stem and of the flowers : the former 
is 10 or 12 feet high with dichotomous branches, and the 
latter are 5-6 inches long. It has the habit of some frutes- 
cent Vellosie, but the perigonial leaves and petals are united 
into atube above the ovary, as in Barbacenia. It differs 
however from the species of that genus hitherto described in 
the number of stamens, which are 18, all fertile; whilst in 
the Brazilian Barbacenie the two lateral stamens of each 
series are sterile, usually described as branches of the fila- 
ment. These flowers, of which several rise from the middle 
of a fascicle of leaves which covers the dichotomous branches, 
have their slender tube covered with callosities, are of a pur- 
plish tint, within of a snowy whiteness and the E 
resembles that of the Narcissus. 
