LEGUMINOSvE. CCXXXIII. ACACIA. 



409 



and legumes unknown. Perhaps a species of Prosopis, accord- 

 ing to H. B. et Kuntli, nov. gen. amer. 6. p. 281. 

 Two-winged Acacia. Clt. 1818. Tree. 



113 A.? SALINA'RUM (D. C. prod. 2. p. 456.) spines solitary, 

 straight, rising from the sides of the buds ; pinnae bearing 19- 

 20 pairs of linear, obtuse leaflets, which are glabrous as well 

 as branches and corollas, with a gland at the top of the petiole, 

 and one between each pair of leaflets ; spikes solitary, pedun- 

 culate. T; . S. Native of Jamaica, in salt marshes. Mimosa 

 salinarum, Vahl. eel. amer. 3. p. 35. Stamens 10. Ovary hairy. 



Salt-marsh Acacia. Tree. 



. 114 A. STRIGO'SA (Spreng. syst. 3. p. 137.) leaves with 1 pair 

 of pinnae, each pinna bearing 2 pairs of oblique leaflets, which 

 are pilose beneath ; heads of flowers globose ; legume strigose. 

 Jj . S. Native of Peru. Mimosa strigosa, Pers. ench. 2. p. 263. 



Strigose Acacia. Shrub. 



115 A. SELLO'I (Spreng. syst. 3. p. 137.) leaves almost ses- 

 sile, with 1 pair of pinna?, each pinna bearing about 1 2 pairs of 

 linear, shining leaflets ; heads of flowers pedunculate, usually 

 solitary ; legumes straight, lanceolate, with thickened margins. 

 Jj . S. Native of Brazil. 



Scllo's Acacia. Tree. 



116 A. FLA'CCIDA (Spreng. syst. 3. p. 137.) branches and 

 petioles elongated and filiform, flaccid, glabrous ; stipulas linear ; 

 leaves with 1 pair of pinnae, each pinna bearing G pairs of ob- 

 liquely oblong, nerved, pubescent leaflets ; heads of flowers 

 pedunculate. Tj . S. Native of Brazil. 



/Vaccirf-branched Acacia. Shrub. 



117 A. INCA'NA (Spreng. syst. 3. p. 137.) branches clothed 

 with flocky down ; leaves with 1 pair of pinnae, each pinna 

 bearing about 20 pairs of oblong, obtuse, nerveless leaflets, 

 which are hoary and lepidoted beneath ; heads of flowers twin, 

 pedunculate. Tj . S. Native of Brazil. 



Hoary Acacia. Shrub. 



118 A. SEi6sA (Spreng. syst. 3. p. 137.) branches hairy; 

 leaves with 1 pair of pinnae, each pinna bearing many pairs of 

 linear leaflets, which are ciliated with strigae on the margins. 



Jj . S. Native of Brazil. 

 Setose Acacia. Shrub. 



SECT. III. SPICIFLORJE (from splca, a spike, and Jlos, a flower ; 

 in reference to the disposition of the flower in spikes). Leaves 

 bipinnate, with few or many pairs of pinnae, each pinna bearing 

 many pairs of leaflets. Flowers disposed in spikes. 



* Unarmed trees or shrubs. 



119 A. CAUDA'TA (D. C. prod. 2. p. 456.) unarmed ; leaves 

 with 2-3 pairs of pinnae, each pinna bearing 7-8 pairs of linear- 

 oblong, very blunt, somewhat emarginate, quite glabrous leaflets, 

 which are oblique at the base, the outer ones largest ; petioles 

 glandless ; spikes twin, disposed in a terminal raceme. Tj . S. 

 Native of Cayenne. Mimosa caudata, Vahl. eel. amer. 3. p. 35. 

 Petals 5. Stamens 10. Legume unknown. 



Tailed Acacia. Tree. 



120 A. CYCLOSPE'RMA (D. C. prod. 2. p. 456.) unarmed; 

 leaves with 3 pairs of pinnae, each pinna bearing 3-4 pairs of 

 ovate-oblong, rather coriaceous leaflets, which are cuneated at 

 the base, and are glabrous as well as the petioles, with a de- 

 pressed gland between each of the pairs of pinnae, and also be- 

 tween each of the pairs of leaflets ; spikes supra-axillary, solitary ; 

 seeds flat, orbicular. P? . G. Native of New Caledonia. Flowers 

 5-cleft. Legume 4-5 inches long, compressed. 



Circle-seeded Acacia. Tree. 



121 A. GRANULO'SA (Labill. cal. p. 67. t. 66.) unarmed; 

 leaves with 5 pairs of pinnae, each pinna bearing 12 pairs of 

 alternate, obliquely ovate-oblong, obtuse leaflets ; spikes axillary, 



VOL. II. 



solitary ; stamens monadelphous ; branches granular. Pj . G. 

 Native of New Caledonia. Legumes moniliform, 6-7-seeded. 

 GVflMM/ar-branched Acacia. Shrub 4 to 6 feet. 



122 A. FU'LGENS (Labill. cal. p. 68. t. G7.) unarmed; leaves 

 with 2-3 pairs of pinnae, each pinna bearing 3 pairs of broad, 

 elliptic, obtuse leaflets, which are attenuated at both ends ; spikes 

 of flowers length of leaves, tj . G. Native of New Caledonia. 



Shining Acacia. Shrub 12 feet. 



123 A. DISTA'CHYA (Moc. et Sesse, fl. mex. icon. ined. D. C. 

 prod. 2. p. 456.) unarmed ; leaves with 4 pairs of pinnae, each 

 pinna bearing 3-4 pairs of oval, obtuse leaflets, which are rather 

 villous as well as the petioles ; spikes axillary, twin. T? . S. Na- 

 tive of New Spain. Partial petioles jointed at the base. Co- 

 rolla 5-parted. Stamens 9 ? monadelphous at the base. Legume 

 unknown. 



Tmo-spiked Acacia. Tree. 



124 A. THIBAUDIA'NA (D. C. prod. 2. p. 456.) unarmed; 

 leaves with 4 pairs of pinnae, each pinna bearing 7-9 pairs of 

 ovate, somewhat rhomboid leaflets, which are rather oblique at 

 the base, and villous beneath, as well as the petioles, which bear 

 a sessile gland each ; legumes compressed, contracted between 

 the seeds. lj . S. Native of South America, but in what 

 place is unknown. Sophora obliqua, Pers. ench. 1. p. 452. 



Tliibaud's Acacia. Tree. 



125 A. ROHRIA'NA (D. C. prod. 2. p. 457.) unarmed ; leaves 

 with 4 pairs of pinnae, each pinna bearing about 10-11 pairs of 

 somewhat trapeziform, obtuse, glabrous leaflets, which are beset 

 with yellow villi on the ribs, with a gland between each of the 

 pairs of leaflets ; spikes solitary, pedunculate, axillary, length 

 of leaves. Pj . S. Native of South America. Mim6sa nigri- 

 cans, Vahl. eel. amer. 3. p. 37. t. 29. but not of Labill. Plant 

 becoming black on drying. 



Rhor's Acacia. Tree. 



126 A. NUDIFLO'RA (Willd. spec. 4. p. 1058.) unarmed ; 

 leaves with 4-6 pairs of pinnae, each pinna bearing 12-15 pairs 

 of elliptic, obtuse leaflets, with a depressed gland between each 

 of the pairs of pinnae ; spikes of flowers axillary and lateral, 

 filiform. J? . S. Native of Porto Rico. Leaves downy be- 

 neath as well as the petioles, when young. Legume linear, flat, 

 glabrous. 



Naked-Jlorvered Acacia. Tree 20 feet. 



127 A. MURICA'TA (Willd. spec. 4. p. 1058.) unarmed ; leaves 

 with 5 pairs of pinna?, each pinna bearing 12-15 pairs of ovate, 

 retuse, rather emarginate leaflets, with a depressed gland be- 

 tween each of the pairs of pinnae ; spikes cylindrical, subulate, 

 aggregate at the tops of the branches ; branches warted. Tj . S. 

 Native of the West Indies. Mimosa muric^ta, Lin. spec. 1504. 

 Plum. ed. Burm. t. 11. Flowers white. 



Afnca<e-branched Acacia. Tree. 



128 A. UOSTRA'TA (Humb. et Bonpl. in Willd. spec. 4. p. 

 1060.) unarmed ; leaves with 6 pairs of pinnae, each pinna bear- 

 ing numerous pairs of linear, glabrous leaflets ; petioles pilose, 

 bearing an urceolar gland at the base ; spikes axillary, fj . S. 

 Native of South America. Mimosa ignavi, H. B. et Kunth, 

 nov. gen. amer. 6. p. 259. Flowers unknown. Legume linear, 

 beaked at the apex. 



Beaked-podded Acacia. Tree. 



129 A. CALLO'SA (Spreng. syst. 3. p. 138.) branches beset 

 with callous warts : petioles pubescent, bearing a gland at the 

 base ; leaves with 7 pairs of pinnae, each pinna bearing many 

 pairs of linear, shining leaflets ; spikes disposed in panicles. 



\l . S. Native of Brazil. 



CaWous-warted Acacia. Tree or shrub. 



130 A. ARENO SA (Willd. 1. c.) unarmed ; leaves with 6 pairs 

 of pinnae ; each pinna bearing 16 pairs of linear, acute, ciliated 

 leaflets ; petioles pubescent, bearing a gland between each of 



3 G 



