Acacia.] LEGUMINOS& (Harv.) 979 
Has. Springbokkeel, Burke § Zeyher ! 558. (Herb. Hk., Sd.,-Bth.) pe 
A rigid. much-branched shrub, 1-2 feet high.. Branches alternate, flexuous, terete, 
cano-puberulous, and substriate. Stipular spines in pairs, short, recurved, glabrous, 
horn-colour. Leaves bipinnate, pinne unijugate, on a very short, gland-tipped peti- 
ole ; leaflets 6-10-jugate, obliquely linear-oblong, blunt, glabrous, or minutely 
downy. Flowers capitate, on short, axillary peduncles, 8-12 in the head, Sepals 
nearly free, oblong, blunt, woolly-edged. Petals oblong, free. Filaments glabrous, 
not much longer than the petals, 5 opposite the petals, shorter. Anthers with a very 
minute or obsolete gland. The singular legumes, which look like the carpels of a 
Fae agua are 6—7 lines long, and rather more in breadth, the carinal wing, 1-1} 
wide. 
LXXX, ACACIA, Willd. 
Flowers frequently polygamous. Sepals 3-5, either connate in a cam- 
panulate calyx or free. Petalsas many, more or less united in a mono- 
petalous corolla, rarely at length free. Stamens numerous (mostly more 
than 50), free or connate at base, rarely (in male flowers) collected in a 
central column. Legumen various, mostly dry. Benth. in Lond. Journ. 
Bot. vol. 1, p. 318. 
Trees or shrubs, widely distributed. Leaves (at least the primordial) bipinnate. 
Glands on the upper margin of the petiole ; petiolar below the lowest pair of pinnz ; 
jugal, smaller between or a little below the upper pair of pinnz or all the pairs, and 
sometimes between the upper pairs of leaflets ; often absent. Stipular or axillary 
spines often present, and the ends of branches sometimes spiny. Prickles in many. 
Flowers in heads or spikes, yellow. An immense genus, very abundant in Australia, 
where most of the species bear phyllodia, or leaflike petioles, in place of true leaves. 
Acacia was the Greek name of some plant of this genus. . 
ANALYSIS OF THE SOUTH AFRICAN SPECIES. 
1. Gummiferze.—Stipules spinous ; prickles none. (Sp. 1-10). 
Flowers capitate ; bracts close under the head of flowers. _ . ae 
Glabrous ; legume semilunate, tumid, tomentose... (1) erioloba. 
Glabrous ; legume oval, thick, indehiscent ...—_--- Giraffe, 
Pubescent ; leafl. ro-15-jugate, oblong-lin. ;legumelin. (3) heteracantha. 
Cano-tomentose ; spines long ; leaflets 18-24-jugate, 
minute ; legume faleate ... ++. ss ... (4) hematoxylon. 
Flowers capitate ; bracts remote, about the middle of the peduncle. 
Twigs and petioles pubescent or tomentose : : 
Legume oblong, obtuse, very thick, tumid, tomen- 
tose, few-seeded eae ee .-. (5) hebeclada, 
Legume flat, linear-moniliform, or deeply indented (6) arabica. 
Legume stipitate, narrow-linear, flat, falceate —... (7) hirtella. . 
Glabrous ; legume long and narrow, linear-faleate ... (8) horrida. 
Glabrous ; legume lanceolate-oblong, broad. 
No petiolar gland ; leafl. oblong-linear_ ... ... _(g) robusta. 
_ A large, petiolar gland ; Jeafl. narrow-linear .... (10) Natalitia. 
2. Vulgares.—Stipules not spiny. Branches armed with sharp thorns or prickles, 
below the nodes or scattered. (Sp. 11-17.) ‘ 
Flowers capitate. Prickles in pairs just below the nodes. Stem arborescent. 
_ @labrous ; pinne 3-jugate ; leafl. unijugate, obovate (11) detinens. ‘ 
‘Twigs and petioles hispid ; pinne 4-6-jugate ; leaflets 
- --3+6-jugate ae Hens Mess se ... (12) ferox. 
Flowers spicate. Prickles in pairs, or scattered, or none. - 
Prickles in pairs nel = nodes, id nae P a8 
Twigs hispid ; leafl. 5-8-jugate, oblong or obovate, ae 
ae. a ae eee kg a 
Twigs subpuberulous ; leafl, 15-30-jugate, narrow- at gees 
linear 
