ACACIA SEEDLINGS. 159 



Seeds black, oval, 3*5 to 4 mm. long, 2 to 2'5 mm. broad, 



1 mm. thick. 



Hypoeotyl terete, creamy, becoming brownish-red, up to 

 2*3 cm. long, about 1*5 mm. thick at base, '7 to 1 mm. at 

 apex, glabrous. In one case five roots grew at 7 or 8 mm. 

 above the base. 



Cotyledons sessile, auricled, oval-oblong, 5 to 6 mm. long, 

 3 to 3*5 mm. broad, upperside green, underside pale green 

 to brownish-red. 



Stem at first angular, becoming terete, pilose to slightly 

 pubescent, viscid towards apex. First internode *5 mm.; 

 second *5 to 1 mm.; third '5 to 3 mm.; fourth 1 to 5 mm.; 

 fifth to eighth 2 to 9 mm. 



Leaves — No. 1. Abruptly pinnate, petiole 2 to 3 mm., 

 brownish-green, pilose; leaflets two pairs, up to 7 mm. long, 



2 to 3 mm. broad, usually obliquely obovate, the basal pair 

 sometimes oblong-acuminate, upperside green, underside 

 paler; rachis 2 to 3 mm., glabrous, excurrent. 



No. 2. . Abruptly bipinnate, petiole 4 mm. to 1 cm., pilose, 

 excurrent; leaflets two to four pairs, often unequally pin- 

 nate, usually oblong-acuminate, up to 5. mm. long, 1*5 to 



2 mm. broad, mucronate, margins often ciliate; rachis 4 to 

 7 mm., with a few scattered hairs, excurrent; stipules 

 narrow, about 1 mm. long. 



No. 3. Bipinnate, petiole 8 mm. to 1*5 cm., pilose; leaf- 

 lets two to four pairs; rachis 4 to 6 mm. 



Nos. 4 and 5. Bipinnate, petiole 6 mm. to 2*1 cm. in 

 No. 4, 1*5 to 2*5 cm. in No. 5, with a channelled appearance 

 owing to the margins having raised nerves, pilose to hirsute; 

 leaflets three to five pairs, rarely six on No. 4, up to about 



3 mm. long, often *5 mm. broad, oblong-acuminate, mucro- 

 nate, margins often ciliate; rachis 4 to 8 mm., pilose, 

 excurrent; stipules linear, about 2 mm. long. 



