148 R. H. CAMBAGE. 



No. 2. Abruptly bipinnate, petiole dilated, with a strong 

 nerve along lower margin, 1*3 to 1*5 cm. long, 1 to 1*5 ram, 

 broad, green, hoary, excurrent ; leaflets three to four pairs,, 

 obovate-oblong, mucronate, 5 to 8 mm. long, 3 to 4 mm. 

 broad, the basal leaflets often smaller, midrib and secondary 

 vein distinct, upperside green, becoming brownish-red in 

 winter months, underside paler ; rachis 7 mm. to 1*3 cm. 

 long, green, pilose, excurrent; stipules reduced to scales. 



Nos. 3, 4, 5 and 6. Abruptly bipinnate, petiole dilated 

 vertically, about the same as in No. 2, and with a similar 

 strong lower marginal nerve extending to the base of the 

 pinnae, 8 mm. to 1*4 cm. long, hoary to hispid ; leaflets 

 three to four pairs, similar to those of No. 2 ; rachis pilose 

 to hispid, excurrent; stipules reduced to scales about 

 1 mm. long. 



No. 7 or 8 and upwards. Usually phyllodes. 



The petiole of the first bipinnate leaf of this species 

 shows a distinct transition stage towards the development 

 into the subsequent phyllodes. 



Uninerves — Angustifolise. 



Acacia stricta, Willd. Seeds from Homebush, near Sydney. 

 Growing on Wianamatta Shale formation. (Plate I, 

 Numbers 4 to 7.) 



Seeds black, oblong to oval-oblong, 3 to 4 mm. long, 2 mm. 

 broad, 1*2 mm. thick. 



Hypocotyl erect, terete, creamy, becoming pale green to 

 pale pink, 1*4 to 2*6 cm. long, 1 to 1*5 mm. thick at base, 

 *5 to 1 mm. at apex, glabrous. 



Cotyledons sessile, slightly sagittate, oblong, apex 

 rounded, 5 to 6 mm. long, 2 mm. broad, remaining on the 

 plants, in many cases, until the phyllodes appear, outer or 

 underside pinkish-green, becoming green, upperside green, 

 glabrous. 





