Pterolobium. | XLVII. § CHSALPINIEEH (OLIVER). 265 
usual form of which differs at first sight in the larger flowers, longer pedicels, and much 
laxer inflorescence. A specimen, probably of this species, from Madras, in the Kew 
herbarium, forms a connecting link between the two. 
_ Dr. Schweinfurth (Fl. Aithiop. pp. 5 and 255) indicates a second species as occurring 
m Abyssinia and Sennaar, differing from P. abyssinicum in the smaller pinne and the 
number (20 pairs) of leaflets to each. No name or description is given. 
6. GLEDITSCHIA, Linn.; Benth. et Hook. f. Gen. Plant. i. 568. 
Flowers polygamous. Calyx-tube turbinate, segments 3-5 linear or 
oblong, in wstivation open or slightly imbricate. Petals 3-65 sessile, 
slightly unequal, imbricate. Stamens 6-10, free, unequal; anthers 
small, uniform, ovate or rotundate, dehiscing longitudinally. Ovary 
stipitate (or sessile), villous, narrowed into the short style; stigma 
obtuse; ovules 2-2. Legume indehiscent or tardily 2-valved; in 
the African species flat, coriaceous, nearly straight. “Seeds albumi- 
nous.” —'rees frequently armed with simple or branched spines. Leaves 
bipinnate or simply and abruptly pinnate. Stipules inconspicuous. 
Flowers small in simple or paniculate spikes or racemes. 
A small genus, occurring in North America and temperate Asia, as well as in Lower 
Guinea. The following species is endemic. 
1. G. africana, Welw. ; Benth. in Linn. Trans. xxv. 304, Tree of 
moderate size, with a spreading crown; extremities as well as the 
young leaves and inflorescence softly pubescent-tomentose or villous. 
Leaves bipinnate, pinne opposite, abruptly 3—4-jugate or occasionally 
2-3-jugate with a terminal pinna; leaflets in each pinna 8—13, alter- 
nate, coriaceous, obliquely elliptical or varying from ovate- to obovate- 
elliptical, obtuse or retuse, at length often glabrous at least above, 
and shining with prominent venation, ?-1}in. long. Common petiole 
sometimes with a gland or papilla between the pinni ; petiolules rarely 
lline. Spikes dense, villous, often interrupted slightly, 14-3 in. long, 
collected in a short terminal panicle of 4 ft.; flowers sessile solitary 
or fascicled in the axil of small lanceolate bracts, mostly 5-merous, 2 
lines long. Petals narrow-oblanceolate villous externally especially 
towards the margin, but slightly exceeding the narrow-oblong calyx- 
lobes. Stamens 10 or 1 or 2 imperfect, longer than the petals; fila- 
ments very thinly pilose. Ovary pilose, stipes below consolidated with 
the calyx-tube; style glabrous; ovules about 5. Legume flat, straight, 
oblong, usually very obtuse with a minute subterminal apiculus, nar- 
rowed below into a stipes of }4in.; 3-4 in. long, 1-1} in. broad. 
Lower Guinea. Huilla and Pungo Andongo, Angola, Dr. Welwitsch! 
7. POINCIANA, Linn.; Benth. et Hook. f. Gen. Plant. i. 569. 
Calyx-tube short turbinate, persistent; segments 5, nearly equal, 
valvate in wstivation, deciduous. Petals 5, imbricate, nearly equal, with 
a rounded lamina and distinct claw. Stamens 10, free, declinate ; fila- 
ments filiform, pubescent or villous at base ; anthers uniform, oblong, 
