400 R, H. CAMBAGE. 



Uninerves — Racemosse. 

 Acacia linifolia, Willd. Seeds from Cheltenham and 

 Waterfall, New South Wales, growing on Hawkesbury 

 Sandstone formation. (Plate XVII, Numbers 1 to 3.) 

 Seeds black, oblong-oval to obovate, edges thin, 5 to 6 

 mm. long, 3 mm. broad, 2 mm. thick. 



Hijpocotyl erect, terete, pale coloured below soil, reddish 

 above, 1 to 5*5 cm. long, 1*5 to 2*7 mm. thick at base, '7 to 

 1 mm. at apex, glabrous. 



Cotyledons sessile, auricled, oblong-oval, 6 to 7 mm. long, 

 3*5 to 4 mm. broad, soon becoming re volute and cylindrical, 

 falling in about two or three weeks, outer or underside 

 pale pink, at first convex, sometimes with two or three 

 raised longitudinal lines and a few small glands, upperside 

 at first brownish-pink, becoming brownish-green, glabrous. 



Stem terete, hirsute. First internode *5 to 1 mm.; 

 second 1 to 4 mm.; third 2 mm. to 1*5 cm.; fourth 2 mm. 

 to 2*4 cm.; fifth 3 mm. to 2'5 cm.; sixth 2 mm. to 1*5 cm.; 

 seventh 2 to 6 mm. In some of the young plants the early 

 phyllodes become crowded, as many as thirty occurring in 

 the length of 1 cm. 



Leaves — No. 1. Abruptly pinnate, and showing beyond 

 the edges of the cotyledons as soon as they are up, petiole 

 4 to 7 mm. long, green, pilose; leaflets four to seven pairs, 

 oblong, acuminate, 4 to 7 mm. long, 1*3 to 2*6 mm. broad, 

 the basal and terminal pairs often the smallest, the latter 

 being sometimes obovate, upperside green, underside at 

 first reddish, becoming pale green, midrib distinct on under- 

 side, secondary vein showing under pocket lens; rachis 1*3 

 to 1*7 cm. long, pilose, excurrent. 



No. 2. Abruptly bipinnate, petiole 1 to 1*4 cm. long, 

 slender, green, pilose, excurrent ; leaflets five to seven 

 pairs, oblong, acuminate; rachis 1 to 1*4 cm. long, green, 

 pilose, excurrent. 



