120 



}{. H. CAMBAGE. 



Bipinnate — (Botryocephalae). 

 Acacia polybotrya Benth. Seeds from Mudgee (J. H. 

 Maiden). (Plate IV, Numbers 4 to 6.) 



Seeds glossy-black, oblong, 6 to 8 mm. long, 3 to 3*5 mm. 

 broad, 2 mm. thick. 



Hypocotyl terete, brownish-red, 1 to 2*5 cm. long, up to 

 3 mm. thick at base, 1 mm. at apex. 



Cotyledons sessile, auricled, oblong, apex rounded, up to 

 9 mm. long, 4 mm. broad, upperside green, underside red- 

 dish, soon becoming revolute. 



Stem brown to green, or bluish-green on exposed side, 

 glabrous to pilose. First internode *5 to 1 mm.; second 1 

 to 3 mm.; third and fourth 6 mm. to 1*5 cm.; liftli to seventh 

 1 to 2*8 cm. 



Leaves — No. 1. Abruptly pinnate, petiole 4 to 7 mm., 

 usually with gland, glabrous; leaflets four to five pairs, the 

 basal leaflets sometimes alternate, oblong, rather obtuse, 

 the apical pair usually obovate, 3 to 7 mm. long, up to 4 mm. 

 broad, midrib distinct, upperside green, underside paler; 

 rachis 9 mm. to 1*3 cm., glabrous, with terminal seta. 



No. 2. Abruptly bipinnate, petiole 8 mm. to 1*8 cm., 

 brownish-green, with gland and terminal seta; leaflets four 

 to five pairs, the basal leaflets sometimes alternate, oblong 

 to obovate, 2 to 6 mm. long, 1 to 3 mm. broad; rachis 1 to 

 1*5 cm., with terminal seta; stipules reduced to scales. 



Nos. 3 and 4. Abruptly bipiunate with one to three pairs 

 of pinnae, from 1 cm. in the single petiole to 3*7 cm. in the 

 common petiole, with gland, pilose; leaflets five to nine 

 pairs; rachis 1*1 to 2'8 cm. 



Nos. 5 to 9. Abruptly bipinnate with three to eight 

 pairs of pinnae, common petiole 2*6 to 6"5 cm., with gland 

 near base, and sometimes also at base of apical pair of 

 pinnae, pilose; leaflets eight to ten pairs; rachis up to 3 cm., 

 pilose. 



