8 
LEGUMINOS.F 
SOPHORA TOMENTOSA. 
L. Spec. Plant. 533. 
Port Molle. 
LEPTOSEMA OXYLOBIOIDES. 
Branches faintly silky, glabrescent, winged by foliaceous expansions ; pedicels lateral, 
solitary, at last longer than the velvet-silky calyx, bibracteolate near the middle ; flowers small ; 
vexillum ovate-oblong, slightly bicarinate at the base, nearly as long as the other petals, 
emarginate ; expanded anthers ovate-cordate, small ; ovary short-stalked, villose ; style short ; 
pods ovate, rostrate ; seeds numerous. 
Port Denison. Found during Mr. Gregory’s expedition on Newcastle Range. 
A shrub of a few feet height. Branches alternate, pliyllodineous by the thick-coriaceous 
and copiously veined expansions, which alternately from gemma to gemma decur. Bracts 
semilanceolate, bent inward, 2 lines long or shorter, outward velvet-silky. Flower-bearing 
pedicel twisted, grey velvet-downy, about 2 lines long ; fruit-bearing one straight, often 3-4 
lines long, stout-filiform, glabrescent. Flowers resupinate. * Calyx about 4 lines long, cleft to 
near the base into two lips, inside, with the exception of the margin, almost glabrous ; upper lip 
divided hardly to one-third of its length into two deltoid teeth ; lower lip deeply cleft into three 
lanceolate-linear segments. Petals one-third longer than the calyx, seemingly red, all glabrous. 
Vexillum broader towards the base, hardly longer than 3 lines, tapering into a broadish somewhat 
channelled unguis. Lamina of the wings about 4 lines long and 1 line broad, rather blunt, 
semiliastate-oblong, with an unguis of about 1 line length. Petals of the carina from the 
middle to near the apex connate ; their lamina oblique-elliptical, rather blunt; their claw con- 
tinuous to the lower margin of the lamina, by which means at the base of the upper edge of the 
petal a short blunt lobe is formed. Filaments glabrous, linear-setaceous, hardly longer than the 
calyx. Anthers dorsifixed, line long. Ovary attenuated into a short stipes. Style curved- 
filiform, 1£ line long, glabrous. Stigma very small. Pod broad-ovate, turgid, nearly smooth in 
age, blunt, suddenly rostrate, about ^ inch long. Funicles measuring about 1 line, setaceous. 
Seeds many, black-brown, shining, kidney-shaped, sometimes grey-brown with black spots, 1 
line long. Strophiole none. 
The form of the standard affords, in conjunction with the habit of the plant, the only 
reliable note by which it can be separated from Oxylobium. It may be therefore preferable to 
place Leptosema into Eupodaly ideas rather than to consociate it with Mirbeliese. The shape of 
the calyx is subject in the various legitimate species of Oxylobium to so great variations, that 
the relative length of the tube, lips and teeth of the calyx of Leptosema cannot be regarded as 
confirming its distinction from that genus. 
Another congeneric plant, although not the result of the Burdekin expedition, is inserted 
here on this occasion. 
LEPTOSEMA CHAMBERSII. 
(Sect. Callipetalvun.) 
Silky ; branches almost cylindrical ; branchlets angular-filiform or subulate, spinescent, 
divaricate ; racemes arising from the base of the stem, many flowered ; pedicels near the 
summit bibracteolate, as well as the calyces and peduncle silk}'-tomentose ; flowers large ,* 
vexillum from a cordate base narrow-lanceolate, acute, with two callous teeth at the base, about 
half as long as the other petals ; wings hardly longer than the carina ; expanded anthers linear- 
elliptical, elongated ; style very long, glabrous ; ovary sessile, oblique-ovate, velvet-downy ; 
ovules numerous. 
Between the Rivers Stephenson and Finke. John Macd. Stuart. 
A dwarf shrub, according to the only specimen before us. Rhizome pale, somewhat 
corky. Stems and their numerous ramifications grey-silky. Scale at the base of the 
branchlets lanceolate-ovate, acute or semilanceolate. Racemes 2-4 inches long, many-flowered. 
Peduncles flexuose. Pedicels 3-5 lines long, stout, provided at the base with a cordate- 
ovate acuminate bract of about 2 lines length. Bracteoles also deciduous, hardly 2 lines 
long, narrow-lanceolate, somewhat channelled. Calyx nearly one inch long, before expansion 
conical-cylindrical, bilabiate to near the base, valvate in preflorescence, glabrous inside ; 
lower lip divided to near the base into three equal broad-linear upward successively tapering 
segments ; upper lip quadrate-oblong, short bilobed at the apex, about as long as the lower 
one, the lobes rounded in front and laterally acuminate. Petals all glabrous, crimson in 
their upper parts, pale and somewhat transparent towards the base. Standard § inch long, 
below 2-3 lines broad, with a minute terminal apiculum ; its claw about 1 line long and 
broad, supported on both sides by two minute acute opposite teeth, of which the inner 
pair is the smallest, and which originate by the dilation on both sides of the base of the 
vexillar stamen and from the unilateral enlargement of the base of the two next filaments. 
Wings about 15 lines long, oblong-lanceolate, with a faint acumen and with an unguis of about 
1 line length. Petals of the carina semiliastate-oblong, coherent above the middle, free in age, 
with a short broad-linear unguis. Filaments glabrous, linear-subulate, of unequal length ; the 
longest attaining nearly the length of the keel. Anthers isomorphous, dorsifixed, versatile, 2-3 
lines long, with two introrse fissures. Style filiform, glabrous, 1 J inch long, curved at the apex, 
at first uncinate, gradually upwards thinner. Stigma very minute. Ovary inside smooth. 
Fruit as yet unknown. 
