9 



Acacia.] xu leguminos^:. 327 



base only. Petals linear-spatliulate, concave and thick at the top, giving the 

 buds a peculiar turbinate truncate shape. Pod (only seen in Herb. Bonder.) 

 . sessile, linear, incurved, terete or compressed at right angles to the valves, 

 acuminate and narro^ved at the base, 2 to 4 in. long, hard and quite smooth, 

 neither contracted between the seeds nor showing prominent sutures. Seeds 

 not seen.— Meissn. in PI. Preiss. i. 6, ii. 200. 



W. Australia, Lriimmond^ 2nd Coll. n. 140 ; Swan and Canning rivers, Preiss, n. 975 

 and 998 ; Gordon river, 0/^/^V/^.— Resembles sometimes A, geuistoides and A. ericifoiia, 

 uut the pod is totally different, the phyllodia, although often sulcate, have do prominent 

 nerve, and the stipules are usually more or less spiuescent. 



21. A. sulcata,' \R. Br, in Jit. Horf. Kew. ed. 3, v. 460. A dense 



bushy shrub, attainiuGf sometimes several ft., quite Mabroiis, the brandies 

 Slightly angular. Phyllodia usually crowded, linear-terete, incurved, with a 

 short pungent point, -^ to 1 in. long, deeply sulcate-striate. Stipules minute, 

 reduncles usually 2 together, rather shorter than the pliyllddia, bearing each 

 a globular head of about 10 to 15 flowers, mostly 5-merous. Sepals distinct, 

 linear-spathulate, not half as long as the corolla. Petals smooth, without 

 prominent midribs, completely separating. Pod flat, but very flexUous, much 

 curved or twisted, rarely above 1 in. long, H to 3 lines broad. Seeds nearly 

 orbicular ; funicle very shortly filiform and folded at the base, dilated into a 

 cup-shaped fleshy arillus under the seed.— DC. Prod. ii. 450; Bot. Keg. t. 

 928 ; Wendl. Comm. Acac. t. lO ; Meissn. in PL Preiss. i. 11. 



^- Australia. King George's Souud and adjoining districts, R. Broion, Lrurtimond, 

 aw Coll. n. 3, Preus, n. 978, and others, and eastward to E. Mount Bairfen, Maxwell. 

 ^ouie specimens appeal* almost to pass into A. Mcifolia and its allies amongst Calami- 



.22. A. costata, Benth. in Hook. Land. Journ. i. 339. A low shrub, 

 J^jth thick rigid striate often spinescent branches, pubescent or glabrous, 

 f 'allodia narrow-lanceolate, 2 to 4 lines long, very rigid and thick, tapering 

 into pungent points, the upper edge convex but without any gland, both mar- 

 gins thick and nerve-like. Stipules minute, setaceous. Peduncles rather 

 Snort, bearing each a globular head of about 10 to 13, 5-raerous flowers, 

 ^alyx small, deeply lobed or at length separating into distinct ciliate acute 

 sepals. Petals rigid, striate, united at the base. Pod not seen. 



W. Australia. Svvau River. Dnmmond, \st Coll. ; Darling range, Oldfield. 



^me specimens of Drummond's have mucli resemblance to this, with the same spinescent 

 yjhes, but the phyllodia are occasionally slightly angular, and the flowers are nearer those 

 « ^. diverffeju. 



23. A. barbinervis, Benth. in Hook. Lond. Journ. i. 326. A low shrub. 

 J«en under 1 ft., usually loosely pubescent with short spreading hairs, the 

 t»^anehes angular. Phyllodia liuear-falcate, recurved, rigid, tapenng into a 

 P""^'ent point, f to 1 in Ion- or the lower ones shorter and' broader, with 

 ^.^T prominent nerve-like margins. Stipules very small, setaceous, some- 

 "njes spinescent. Peduncles shorter than the phyllodia; bearing each a glo- 

 ^^ ar head with usually S to 10, rarely 12 to 15, mostly 5-merous flmvera. 

 ^/'.lyx broad, shortly toothed, ciliate, not half so long as the corolla. Petals 

 '•I'ck and prominently striate. Pod not seen.— Meissn. m PL Preiss. i. 7. 



^- Australia. Swan River, Drummond, \st Coll.; Prem, «• 988. 



