SCHOMBURGK’S GUIANA PLANTS. OM 
name, it would produce infinitely less confusion to adopt the 
Vachellia of Wight and Arnott, and retain the name of 
Acacia for the Australian group. 
261. Acacia Westiana. DC. Prodr. II. p. 464?—Folia fere 
A, filicine, sed glandula adest oblonga ad basin petioli et 
sepius 1-2 minores inter pinnas extimas. Aculei ramorum 
et petiolorum minuti pauci. Panicula ampla divaricata ter-: 
minalis, rachi pedicellisque conescentibus. Flores penta- 
. meri canescentes. Stamina numerosa omnino libera. Le- 
gumen non vidi.— Rio Branco. Schomburgk, n. 852, the 
specimens in flower:—the fruit specimens under the same 
. Number belong to Mimosa acacioides. 
From the genus Acacia, as adopted by De Candolle I , 
should propose to exclude, 1. All the species with definite 
stamens, which will be found to belong to Mimosa, Entada or 
Stryphnodendron, or some perhaps to Plathymenia or Pipta- 
denia. 2. All the species with very long purple or white 
stamina, more or less monadelphous at the base, amongst 
which 4. tetragona and probably some others enter into my 
` genus Calliandra, defined below, and A, Lebbek, with several 
` Others, chiefly Asiatic, constitute another new genus, having 
the flowers of an Inga with the pod of an Acacia. There will 
remain a mass of perhaps three hundred species chiefly 
Australian, but with several Asiatic and African species, and 
à considerable number of American ones, of which I have 
about forty in my own herbarium. ‘The inflorescence is 
capitate or spiked, the corolla small, usually, perhaps always, 
gamopetalous and campanulate, the stamens numerous yellow 
and perfectly free, the pod bivalved, without any pulpy or- 
cellular substance inside at its maturity, the valves mem- 
branous, coriaceous or woody, not rolling back elastically, 
but Straight, curved, or twisted about in a variety of shapes. 
.. . 962. Calliandra? stipulacea (sp. n.) ; pinnis 3-4-jugis, foli- 
= oli 8—12-jugis oblique oblongis obovatisve valde inzequilateris = 
subcoriaceis glabris, petiolis eglandulosis ramisque glabriuscu- un 
lis, stipulis bracteisque lanceolatis cartilagineis, capitulis pew — 
dunculatis terminalibus fasciculatis, floribus sessilibus, calycibus — 
Vol. IT, —No. 11. T cud pt 
