1S8 



ACACIA 



ACACIA 



pound, 1-2 in. long, with gland at bivsp of each pair of 

 pinmv: |)inn;v 2-o ]iairs locca-^ionally 4), 1 in. long; 



'4iti. long, nearly 



2-3' 2 in. lung; lis. 1.") in a head, 



Ifls. about 20 pairs 

 conios longer than 1 



on petliuicles 'j-'4in. long: pod 1 ' -j— i in. long, 'o'H- 

 wide, with nervo-like margins, oeeasionally constricted 

 betwiHMi seeds; swds transverse, Jiin. long, with elub- 

 shaped funiele one-half its length; ripe Julv, Aug. Fls. 

 Jan., Feb. K. v. M. Icon. 12:.3. G.C. IIL 15:37.— A 

 much-iirized ornaiuental and sometimes used as a 

 street tret>. 



,")t>. discolor, Willd. A tall shrub or small tree, either 

 glabrous or pubescent: pinn;e 2-1) jiairs: Ifts. 10-1.5 

 pairs. '4-':jin. long. 1-nerved, pale beneath; large 

 gland on petiole and a few .small ones on upi)er pairs of 

 Ifts.: fls. tj-1.5 in a head, in axillary racemes, .5-merous; 

 petals with prominent miilribs; caly.x short, ciliate: 

 pod flat, with nerve-like margins, 1-3 in. long, J^in. 

 wide: funiele enlargeil at hilum end. 



.37. pruinosa, Cunn. A small tree with young foliage 

 bronze-like: pinme 2-4 pairs, 2'2— 1 in. long; Ifts. 11-24 

 pairs, '^?4in. long, oblong to linear; nerve excentric, 

 occasionally 1 or 2 short nerves; gland prominent, dis- 

 tant from biise: fls. in racemes, 30 in a head, .5-merous; 

 sepals united, half the length of petals: pods with nerve- 

 like margins, 2 '2-3 in. long, ^sin. broad, occasionally 

 constricted between seeds; funiele short, filiform half 

 its length, then enlarged into club-shaped aril. Fls. 

 Feb.-Apr. 



.58. decurrens, \\illd. Green Wattle. A hand- 

 some tree, glabrous or more or less tomentose-pubescent 

 with branches more or less prominently angled: pinnae 

 8-15 pairs or more (sometimes reduced to 5 or 0); 

 Ifts. 30-40 pairs or more, linear, from under 2 to nearly 

 5 lines long, according to the variety: fls. 20-30 in a 

 heail, mostly 5-merous: pods 3—4 in. long, about }'4in. 

 broad, more or less contracted between the seeds. 

 Wattles and Wattle-barks, p. 55. Brown, For. Fl. 



of S. Austral. — 

 There is much 

 confusion regard- 

 ing this group 

 among nursery- 

 men and others. 



Var. normalis, 

 Benth. Sydney 

 Black Wattle. 

 Lfts. 34-3^in-long. 

 Restricted range 

 on the coast of 

 Austral. Accord- 

 ing to Maiden, 

 var. normalis fiif- 

 ers from type in 

 having sepals a.s 

 long as petals and 

 cilia on interior of 

 lobe: in .4. rlecur- 

 Tf.nx, tlic petals 

 have a midrib and 

 a short, broadly 

 lobed (tiliate calyx. 

 \ar. mollis, Lindl. (A. molliasinui, Willd.). Black 

 Wattle. .\ tree 20-.50 ft. high, with reddish bark 

 showing under the fi&sures: pinna; 8-20 pairs, shining 

 on upper surface, 2-6 in. long; lfts. 3fM)0 pairs, closely 

 crowded, not )/^in. in length; gland between each pair 

 of pinnae and generally additional ones on internodes 

 between: fl.-clusters in racemes, 3f)-3fj in a head, 5- 

 merous; pwlundf* ]4s-]4\n. long: pods dark, pubescent, 

 2-4 in. long, not }<iin. wide, constricted and contracted 

 between the seeds; seed longitudinal; funiele filiform, 

 enlarged to a light-colored cap over seed; ripe .June- 

 Oct. Fls. pale yellow, blooming profusely in .June and 

 intermittently at other times. B.R. 371. — Distin- 



Acacia decurrens var. dealbata. ( X M) 



guislied from var. deaUidta by its later blooming period, 

 by its lighter fls., its characteristic pubescent pods and 

 smalliT siH'ds and by the short lfts., shining above, 

 which sit close together. 



Var. dealbata, F. v. M. (.4. dealbata, Link). Silver 

 \\'attlk. Fig. 75. .\ tree 50 or more ft. high, with 

 smooth bark and gray pubescent branchlets: Ivs. 

 silver-gray to light green, 3-6J-^ in. long; pinnae 13-25 

 pairs; lfts. 30-40 jjairs; glands 1 between each pair of 

 pinnae: racemes often compound, 30 fls. in a head, 

 5-merous; sepals united; jietals with faint midrib; 

 peduncles J4in. long: pods \}--2—i]-i in. long, Js^J^in- 

 wide, smooth, a rich brown; .seeds longitudinal; fimicle 

 as long as seed, filiform half its distance and ending in 

 silverv club-shaped aril; ripe ,Julv, Aug. Fls. Feb., 

 March. A.F. 13:880. R.ll. 1891; p. 502.— Mts. in its 

 native country. It is sometimes given specific rank 

 as A. dealbata, but intermediate forms occur. 



59. filicina, Willd. {Miinhaa filicidules,Ca.v.). Timbe. 

 Unarmed shrub: Ivs. fern-like; pinn:c 5-30 pairs; lfts. 

 20-.50 or more pairs (rarely 10-15), very small: fl.-heads 

 globular, orange or yellow, in terminal panicles: pods 

 broadly linear, straight or slightly curved, often irreg- 

 ular, flat not iJulpy. Texas and Mex. — The astringent, 

 bitter bark called tiintie is u.sed by the Me.xicans in 

 making pulque for precipitating mucilaginous matter. 

 Safford, Science, Jan. 22, 1909: IGO. 



CO. pulchella, R. Br. A handsome shrub, either 

 glabrous or hirsute, with slender branches, mostly 

 armed with subulate spines: pinna; 1 pair; lfts. 4-7 



pairs, obovate-oblong. 



-J.4in. long; gland on stipes 



between pinnae, or none: peduncles .solitary; fls. .5-mer- 

 ous; petals with prominent midrib; calyx half as long 

 as petals and sinuate- toothed: pods flat, thick margins, 

 1-2 in. long, l(;-i4in. wide; seed longitudinal; funiele 

 filiform and thickened into club-shaped aril. Fls. Apr. 



Var. grandis, Hort. (A. grdndis, Henfr.). Glabrous: 

 lfts. 8-10 pairs, a little larger and more numerous than 

 the type. Fls. Feb.-May. J.H. III. 35: 369 (1897). 



Var. hispidissima, Hort. (.4. hispidissima, DC). 

 Branches covered with long, spreading hairs: lfts. nar- 

 row and revolute: fls. white. B.M. 4.588. 



61. Farnesiana, Willd. (.4. leptnphylla, DC). Popi- 

 NAc. Opopa.n'ax. Cassie. Huisache. Much-branch- 

 ing shrub, 6-10 ft. : stipules straight, slender, sometimes 

 minute spines; pinna; .5-8 pairs; Ifts. mostly 10-25 

 pairs, 1-2 lines long, narrow, linear, glabrous: pedun- 

 cles 2 or 3 in the older axils; fl.-heads large, globular, 

 deep yellow, very fragrant, pods almost terete, inde- 

 hiscent, at length turgid and pulpy. Feb., ilarch. 

 Texas, Mex., Asia, Afr. and Austral. Grown in France 

 for perfumery. — Its origin is probably American, but 

 it is now naturalized in nearly every tropical country. 

 It was intro. into the Hawaiian Isls. as an ornamen- 

 tal, but escaped from cult, and has now almost become 

 a pest. A new variety of A. Farnesiana has been dis- 

 covered which is more hardy than the tj'pe and grows 

 more rapidly. It jiroduccs two crops of fls. a year, which 

 makes it verj' lucrative for the making of perfumery. 

 The pofis ari' said to contain a tannin. 



62. Cavenia, Bert. Espino Cavan. Height 20 ft.: 

 spines stout: lfts. scabrous, scabrous-pubescent. 

 Otherwise near to A. Farnesiana, of which it is some- 

 times considered a mere variety. Chile. — A good hedge 

 plant. 



63. arabica, Willd. Gum Arabic Tree. Fig. 76. 

 Shrub or small tree with gray branchlets; stipules spiny: 

 pinna' 3-8 pairs, .!^-l}'2 in. long; lfts. 10-20 pairs, 

 l'i.-]4m. long, glands seve;ral: fls. in groups of 2-5, 

 (;alyx half the length of corolla: pods distinctly stalked, 

 flat, mostly moniliform, gray-downy, 3-6 in. long. 

 Arabia and Eu. — Some confusion exists between this 

 species and A. Farnesiana, but they are easily distin- 

 guished by means of the pod which in A. arabica is 



