ACACIA SEEDLINGS. 155 



No. 7. Abruptly bipinnate, petiole up to 5 cm. long, ver- 

 tically flattened, 2'5 mm. broad, with prominent central 

 vein, nerve-like margins, and gland on upper margin ; leaf- 

 lets up to fourteen pairs ; rachis up to 4 cm. long, excurrent. 



No. 8. Often a phyllode up to 14 cm. long, 4 mm. broad, 

 with prominent central nerve, and gland on upper margin 

 about 5 mm. from base, and usually with an insignificant 

 vein from the gland to the central nerve near the base, as 

 in the case of A. penninervis, as though the upper nerve- 

 like margin is partly deflected from the gland towards the 

 base. 



In one case all leaves up to No. 15 were abruptly bipin- 

 nate, the petiole of No. 15 being 9*5 cm. long, rachis 2*7 cm. 



Uninerves — Racemosse. 



Acacia pravissima, F.v.M. Seeds from Cotter River, 

 Federal Capital Territory, Canberra. (Plate III, 

 Numbers 1 to 2a.) 



Seeds black, oblong-oval, 3 to 4 mm. long, 2 to 2*5 mm. 

 broad, 1 mm. thick. 



Hypocotyl erect, terete, sometimes pink just below sur- 

 face of soil, upper portion pinkish-green, about 1*7 cm. long, 

 1*5 mm. thick at base, 1 mm. at apex, glabrous. 



Cotyledons sessile, sagittate, oblong, apex rounded, about 

 5 mm. long, 2 to 3 mm. broad, at first erect but becoming 

 horizontal in about a week, and later revolute, outer or 

 underside pale green, with sometimes a raised central nerve 

 or ridge, upperside green, glabrous. 



Stem terete, pinkish-green in lower portion, pale green 

 above, hirsute. First internode *5 mm.; second 2 to 3 mm.; 

 third about 5 mm.; fourth about 6 mm.; fifth 6 to 7 mm.; 

 sixth 5 to 6 mm.; seventh 6 to 7 mm. 



Leaves — No. 1. Abruptly pinnate, petiole about 3 mm. 

 long, glabrous; leaflets three pairs, about 5 mm. long, 2mm. 



