182 



ACACIA 



ACACIA 



,">. juncifdlia, Henlh. (.1. piiiifolid, Honth.)- A tall 

 shrul> witli tiTcto bnuichos, oithor p;lahrous or hirsute: 

 nhyll. fmin slishtly fl!ittom\i to tctrasonous, IMi in. 

 long or nioro, with a nerve on each side; lis. .")-nierou.s, 

 either solitary or in pairs, about U) in a head; i)elals 

 unitiM; eahx spatulate and eiliate, not half so long ;is 

 petals; petltnielos ■4in. long (rarely 

 with nerve-like margins, 3-4 in. long, 



wide; seed: 



I. 



70. Acacia calamifolia. 

 (Xh) 



in.): |)od Hat, 

 less than '4 in. 

 ol)- 

 ,ons, loiinitudinal; 

 funiele half as long 

 as seed, filiform 

 but slightly thick- 

 ened at hilum. F. 

 V. M. Icon. 2:8. 



6. extensa.Lindl. 

 (A. pc ntkdra, 

 Kegel). A shrub 

 .5 ft. tall, with 

 more or less 

 winged angular 

 brauehlets: phyll. 

 linear-subulate or 

 needle-hke, 3-4in. 

 long (sometimes 

 8), Tiin. wide, 

 1-nerved, ending 

 in sharp point; 

 gland J-2-1 in- 

 from base : fls. soli- 

 tary or shortly 

 racemose, 20 in a 

 head, ,5-merous; 

 sepals short; pe- 

 duncles 34'in.long: 

 pods with nerve- 

 like margins, constricted between the seeds, 2-4 in. 

 long, J^in. wide; funiele straight and only slightly thick- 

 ened at hilum end; ripe May. Fls. March. 



7. armata, R. Br. (A. unduU'ita, Willd. A. paraddm, 

 DC. ,1. fiirr'ifera, Lindl. Mimosa paraddxa, Poir.). 

 Kang.\roo Thokn. Fig. 71. A spreading shrub 8-10 ft. 

 wide, 7-11 ft. tall, with pendent finger-like branchlets: 

 phyll. half-ovate, the straight edge hugging the st., the 

 other edge more or less undulate; nerve excentric, end- 

 ing in a pungent point; stipules reduced to slender 

 spines about Min. in length: fls. solitary on peduncles 

 Jiin. long; petals 5; sepals 5, more than one-half 

 length of corolla: pods hairy, straight or slightly curled, 

 in clusters of 2-.5 or reduced to 1, 13^2 in. long, ^in. 

 wide; funiele silvery, as long as seed and enlarged to a 

 cup-shaped aril; ripe Aug. Fls. Feb.-Apr. li.M. 1653.— 

 A shrub with breadth often much greater than its height, 

 sometimes 1.5-20 ft. across, hence suitable for large 

 grounds and roomy comers. Makes a good hedge plant, 

 and Ls also used to reclaim sand-dunes. It is a good rich 

 green and withstands considerable dust and drought. 

 There is a larger-lvd. form with fissured bark and more 

 straggling habit. The phyll. is greener and more ten- 

 der in texture than the type, and the fls. are larger. 



8. cune^ta, Benth. A tall glabrous .shrub: phyll. J/^ to 

 scarcely 1 in. long, wedge-shaped, truncate at the apex, 

 nerve excentric, ending in sharp i)oint at on(? angle 

 while the other angle Ls tipped by a gland; occasionally 

 a faint secondary nerve; sti[)ulessetaceou.s: fls. solitary; 

 peduncles about as long as phyll., H-ir> in a hea<l, 4- 

 merous; petals separate; calyx turbinate, half as long as 

 corolla and with broafl lobes: pod hirsute, thick margins, 

 2-3 in. long and }im. wide. B.H. 1839.— An intenwting 

 ornamental species, .somewhat resembling A. j>ravinfiima. 



9. decipiens, R. Br. (A. dol/ibrif6rmis, CoUa. A. 

 incranmUi, HwA. A. biflf/ra, Paxt.). A shrub either 

 low and bushy or up to 1 or 1 2 f t . tall, glabrous or rarely 

 hirsute: phyll. triangular or trapezoid, '/3-%'tn. long 

 and nearly a.s broad; principal nerve excentric, ending 



in small point, gland on other angle; the occasional 

 stipules are spinescent: fls. solitary or in pairs, 6-10 in 

 a head: pod thick, hard, much incurved, 1-2 in. long, 

 Tij-'s in. wide, narrowed at each end; seeds longitu- 

 dinal; funiele ending in club-shaped aril. B.M. 1745, 

 ;)2 4 1. — The dilTereiice bet ween this and .1 . cuncnta seems 

 to lie chiefly in fls. and phjU.,' which are about as broad 

 as long in A. decipiens, and nmch longer than broad in 

 .4. cunealti, and wedge-shaped. 



10. Meissneri, Lehm. Tall .shrub: young branches 



glabrous, acutely angular: phyl 



-1 in. long, 'g-Vsin. 



broad, ohox-ate-oblong or obliquely cuneate, obtuse, or 

 with a small, hooked point: peduncles shorter than the 

 phyll.: pod flat, }4-)3in. broad, the margins not thick- 

 ened; seed oblong, longitudinal; funiele very long and 

 much folded, the last fold ahnost encircling the seed and 

 returning, but thiekenetl only at the end. 



11. lineata, A. Cunn. (.4. runcijdrmis, A. Cunn.). A 

 bushy shrub: branches usually pubescent, terete and 

 often slightly resinous: phyll. linear, J-^-^iin. long or 

 more, l,'-2 in- wide, nerve near the margin and ending 

 in smaU hooked point: fls. solitary, 5-merous, equal to or 

 exceeding the phyll.; sepals distinct, linear-spathulate; 

 peduncles 34-Hiii- long: pod curved or tvvisted, 3-6in. 

 wide; funiele not so long as seed, ending in a clavate 

 fleshy aril. Fls. March. B.M. 3346 (as A. runciformis). 

 — This differs from A. acinacea and A. ohliqua in only 

 its narrow phyllodia. Habitat in barren forest grounds 

 in the interior of New South Wales. 



12. obliqua, Cunn. 

 (.4 . rotundif blia , 

 Hook.). A drooping 

 shrub, with finger-hke 

 branches, angular and 

 slightly pubescent: 

 phyll. obliquely ob- 

 ovate to orbicular, 

 }4-J^in-long,M-J-8in- 

 wide; 1 excentric 

 nerve ending in re- 

 curved point; stipules 

 minute; gland, when 

 present, one-third dis- 

 tant from base: fls. 

 5-merous, solitary or 

 in pairs on peduncles 

 Vim. long; fls. 15-20 

 in a head; petals with 

 midrib; sepals nar- 

 row, half as long as 

 petals: pod more or 

 less twisted and con- 

 stricted between the 

 seeds, 1-2 in. long, 

 J/gin. wide, thin, with 

 nerve - hke margins ; 

 funiele club-shaped, 

 half :is long as seed; 

 ripe July, Aug. Fls. 

 Feb. B.M. 4041. 



13. acinacea, Lindl. (A 

 branched shrub: phyU. obliquely oblong, H-'i'"- long, 

 14-i/^in. wide, obtuse, with a recurved point; gland 

 one-third distance from base: fls. in pairs (rarely soli- 

 tary), .5-merous; calyx spathulate, cihate, half ;is long 

 as "petals; petals united; peduncles H-H'm. long: pod 

 twisted or curved, 3^in. wide, more or less constricted 

 between the seeds; seed longitudinal; funiele not so 

 long as seed and thickened into fleshy clavate aril. Fls. 

 March. F. v. M. Icon. 4:7. — F. v. Mueller proposed to 

 unite this with the broad-lvd. A. obliqua, since the only 

 difference between them seems to be based upon shape 

 of phyll. This group should be given further study to 

 (leterrnine whether transition stages may be found 

 between the narrow and the round forms and whether 



71. Acacia 



armata. ( X Jz) 



Lalrbhd, Meisn.). A much- 



