412 



LEGUMINOS^. CCXXXIII. Acacia. 



I 



158 A. Se'negal (Willd. spec. 4. p. 1077. exclusive of figure 

 cited,) prickles stipular, straight, short; leaves with 5-8 pairs of 

 pinnae, each pinna bearing 15-18 pairs of oblong-linear obtuse 

 leaflets, which are glabrous, as well as the petioles and branches, 

 with a sessile gland between each of the pairs of pinnae on the 

 petiole; spikes axillary, solitary, slender. Tj.S. Nativeof Arabia, 

 and the interior of Africa. Mim6sa Senegal, Lin. spec. 1506. 

 Flowers small, glabrous, distant. Branches white. Prickles 

 sometimes wanting. Axillary branches abortive, and becoming 

 spines. The spines at the base of the leaves are said to be three 

 by Linnaeus. Gum-senegal is the produce of this tree ; it is 

 usually sold in the shops as gum-arabic ; its medicinal uses are 

 the same, and it is procured in the same way from the trees. It 



was not until the beginning of the 17th century that the Dutch tate, linear-oblong, flat, glabrous, rather membranous, 6-seeded, 

 made gum-senegal known in Europe. After the French got acute at both ends, h . S. Native of Hindostan. Flowers 



164 A. TENuiFLo^RA (Willd. spec. 4. p. 1088.) prickles scat- 

 tered, incurved; leaves with 5 pairs of pinnae, each pinna bear- 

 ing many pairs of ciliated leaflets ; petioles pubescent, rather 

 prickly ; spikes filiform, length of the leaves. ^ . S. Nati ve ^ 



of Caraccas. Legumes membranous, sub-lanceolate, S-S-joedSi. ^ 

 Fine-flowered Acacia. Tree. 



165 A. mode'sta (Wall. pi. rar. asiat. 2. p. 27. t. 130.) arbo* 

 reous ; branches flexuous ; spines axillary, subulate ; leaves with 

 2-3 pairs of pinnae, each pinna bearing 4 pairs of oblong, obtuse, 

 glabrous, glaucous leaflets ; petioles pilose, bearing 1 gland in 

 the middle ; spikes axillary and terminal, usually sohtary, cylin- 

 drical, nodding, on short peduncles; flowers hermaphrodite; 

 filaments distinct, twice the length of the corolla ; legume stipi* 



possession of that river they directed their attention to it as an 

 important object of commerce, and ascertained by experiments 

 made in the latter half of the 17th century that gum-senegal was 

 superior to the be^t gum-arabic. M. Adanson examined all the 

 gum trees of West Africa with great care. They amount to 40 in 

 number, but the three great forests which supply the Senegal 

 market consist chiefly of two kinds, one which produces a white 

 gum called vereck, and another called nebueb, which yields a 

 red gum. . . ' 



. Senegal h.c^c\2L. Clt. 1823. Tree 20 feet. 



159 A. a'lbida (Delil. fl. segypt. 143. t. 52. f. 3.) prickles 

 stipular, straight ; leaves with 3-4 pairs of pinnse, each pinna 

 bearing 9-10 pairs of oblong-linear, obtuse, rather mucronate, 

 glaucous leaflets, which are glabrous, as well as the branches, 

 with a sessile gland between each of the pairs of pinnae ; spikes 

 cylindrical, exceeding the leaves. Tj , G. Native of Upper 

 Egypt, near Syene. Le 



fT/ii/e-Ieaved Acacia. 



160 A. monaca'ntha (Willd. enum. 1056.) prickles stipular, 

 infra-axillary, solitary, recurved ; leaves with usually 8 pairs of 

 pinna?, each pinna bearing 17-20 pairs of oblong leaflets ; spikes 

 cylindrical, panicled, axillary. ^^ . S. Native of Brazil. 



One-spiked Acacia. Clt. 1818. Tree. 



161 A.Da'lea (Desv. journ. bot. 1814. vol. 1. p. 69.) spines 

 straight, elongated, solitary, pubescent, stipular; leaves bipin- 

 nate, piibescent ; spikes S-together, axillary, on short peduncles. 

 Ij . S. Native of the East Indies. Flowers rose-coloured. 



DaleaAike Acacia. 



(Balb 



Rogue's Acacia. 



167 A. A'zak (Willd. 1. c.) 



Lin. suppl. 



unknown. 

 Tree 20 feet. 



white, fragrant. Spines twin, stipular. 



- Modest Acacia. Fl. April. Shrub 8 to 12 feet. 



166 A. latro'num (Willd. spec. 4. p. 1077.) spines stipular, 

 twin, connate ; leaves with 4 pairs of pinnae, each pinna bearing 

 many pairs of small leaflets ; spikes usually twin, elongated, 

 axillary ; legume semi-lunate. ^ . S. Native of the East In- 

 dies. Mimosa latr6num, Lin. fil. suppl. 438. Spines milk-co- 

 loured, straight. Flowers white. This species of Acacia form 

 impenetrable thickets from their interwoven branches and terrible 

 spines in the mountainous parts of India, and are the secure re- 

 treat of the smaller animals and rogues. 



Clt. 1820. Shrub 4 to 6 feet. 



spines stipular, 3-togetber? 



straight ; leaves with 3 pairs of pinnse, each pinna bearing 5 pairs 

 of leaflets, with a gland on the petiole between the lower pair of 

 pinnae. .Ij . G. Native of Arabia Felix. Mimosa A'zak, Forsk. 

 descr. 176. Vahl. symb. 2. p. 104. Flowers and fruit unknown. 

 Azalc is the Arabian name of the tree. 



Azak Acacia. Shrub. 



168 A. ? cAou'cA (Humb. et Bonpl. in Willd. spec. 4. p. 1089.) 

 prickles scattered, rather hooked ; leaves with 4-6 pairs oi 

 pinnae, each pinna bearing 5-10 pairs of oblique, oval, obtuse 

 leaflets, which are pubescent beneath, without any gland on the 

 petioles ; spikes ovate, pedunculate, axillary, solitary ^^ ^^? ' 

 stamens 8-10 ; legumes ciliated, with prickles. ^ • S. Native 

 of Peru, near Gualtaquillo on the banks of the river Cachiyacu. 



Tree. 



Kunth, nov. gen. amer. 6. p. 266. 

 Caducous Acacia. Tree. 



Legume hardly known. 



169 A. PROsopoiDEs (Moc. et Sesse, fl. mex. icon. ined. U- 

 ripul. append, t. 5.) prickles stipular',* infra-axillary, solitary, C. prod. 2. p. 460.) prickles few, scattered, hooked at the apex; 



hooked ; leaves with 3-4 pairs of pinnae, each pinna bearing 3-5 leaves with 2-3 pairs of pinnce, and each pinna bearing 2-3 pairs 

 pairsof elliptic leaflets, the lower ones the smallest ; spikes cylin- of oval, oblong, obtuse, glabrous leaflets; spikes usually t^m- 

 drical, solitary or twin, axillary. Ppj S. Native country un- Tj. S. Native of New Spain. Corolla 5-cleft, reddish. ^^* 



mens 10. Legume unknown. 



Prosopis-Uke Acacia. Tree. , . 



170 A. adiantoIdes (Spreng. syst. 3. p. 146.) prickles short, 



few, straight; petioles tomentose ; leaves with 4 pa^^^.^*^^^"^^! 



taring usually 8 pairs of alternate, diniidiatel)-o 

 long, obtuse, shining leaflets ; spikes axillary, sessile. 'Z • ' 

 Native of Brazil, Sello. 



known. Flowers greenish yellow. Legumes coarctate between 

 the seeds, prickly on the sutures. 



Spim^s Acacia. Shrub 5 to 8 feet. 



163 A. coRNiGERA (Willd. spec. 4. p. 1080.) prickles or spines 

 stipular, connate at the base, compressed, large ; leaves w ith 6 each pinna bearing 



f)air8 of pinnse, each pinna bearing about 20 pairs of glabrous 

 eaflets; gland petiolar ; spikes axillary, cylindrical. Pj . S. 

 Mimosa cornigera, Lin. spec. ed. 1. p. 520. Flowers pale yel- 

 low. The two large connate spines resemble the horns of an ox. 

 Far. a, Americana (D. C. prod. 460.) spines brown. ^2 • S. 

 Native of Mexico, Cuba, and in the woods of Carthagena. — 

 Pluk. pbyt. t. 123. f. 1. — Comm. hort. 1. t. 107. Jacq. amer. 

 266. The legume is filled with pulp according to Jacquin, and 

 it is therefore probably a species of I'ytga or Prosopis. 



, Far. jS, rndica (D. C. 1. c.) spines yellow. Tj. S. Native of 

 the East Indies. — Seba, thes. l.t. 70. f, 13. 



Horn-bearing Acacia or Cuckold-tree. Clt. 1692. Tree 10 

 to 1 4 feet. 



Adiantum-like Acacia. Tree. c 



171 A, hosti'lis (Mart. reis. bras, ex Schlecht. Linnsa.^^- 



■p. 43.) shrubby, branches elongated, spreading ; prickles sca^^ 

 tered, straight; leaves bipinnate, clothed with clammy P"^^^ 

 cence, with 4-6 pairs of pinnse, each pinna bearing 20 P^'^'^j^^ 

 linear leaflets ; stipular prickles and those between the st'P" 



iiijccti icaiieis ; stipuiar pnckies ana iiiose ocLv^ctrii «.-- . 

 straight ; spikes solitary ; legumes membranous, linear-ooio gi 



2-3-seeded, pubescent. 

 Hostile Acacia, 



P?.S. 

 Shrub. . 



Native of Brazil. 



Sect. IV. Gi,oBiFLo'RiE (from globus, a globe, an^ j^* * 



. J_ ^ .. 



