ACACIA SEEDLINGS. 147 



5 mm. long, 2 mm. broad, oblong-acuminate, sometimes 

 mucronate, midrib fairly distinct on underside, upperside 

 green, underside paler; rachis 4 to 8 mm., green, glabrous, 

 excurrent. 



No. 2. Abruptly bipinnate, petiole 6 mm. to l'l cm., 

 green, glabrous, excurrent ; leaflets two to four pairs, 

 obliquely oblong to obovate, 2 to 3 mm. long, the basal 

 pair often smaller; rachis 5 to 7 mm., green, sometimes 

 reddish at base, glabrous, excurrent. 



Nos. 3 to 5. Abruptly bipinnate, petiole up to 1*6 cm., 

 sometimes pilose; leaflets three to five pairs, margins 

 ciliate; rachis up to 8 mm.; stipules acuminate, about 



1 mm. long. 



Nos. 6 to 8. These may be phyllodes, or abruptly bipin- 

 nate, petiole up to 2 cm., slightly dilated and showing a 

 midrib; leaflets four to five pairs. 



Nos. 9 and upwards. Linear pungent-pointed phyllodes, 

 striate, some of the first dozen reaching about 2*5 cm. long. 



Pungentes — (Uninerves). 



Acacia diffusa Lindl. Seeds from Goulburn and Bathurst. 

 (Plate V, Numbers 4 to 6). 



Seeds black, oblong, apex rounded, 4 to 5 mm. long, 2*5 

 to 3 mm. broad, about 1*5 mm. thick. 



Hypocotyl terete, pale pink to reddish, 1 to 2 cm. long, 

 up to 2 mm. thick at base, '7 to 1 mm. at apex, glabrous. 



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

 3 mm. broad, upperside green, underside pale green to 

 brownish-pink, longitudinally wrinkled, often remaining 

 until after the phyllodes appear. 



Stem at first angular and striate where affected by 

 decurrent leaf-stalks, becoming terete, brownish-green. 

 First internode *5 mm.; second 2 to 3 mm.; third to seventh 



2 to 5 mm. 



