ACACIA SEEDLINGS. 403 



above the midrib to a width of 1 mm., or perhaps both above 

 and below to a total width of about 3 mm., and with a 

 small marginal gland, excurrent; leaflets up to six pairs. 1 



Plurinerves — Nervosse. 



Acacia excelsa, Benth., "Ironwood." Seeds from Geera, 



Central Queensland (H. O. Oullen), and Oobar, New 



South Wales (Archdeacon P. E. Haviland). (Plate 



XVIII, Numbers 1 to 3.) 



Seeds from light to dark brown, irregularly oblong to 



ovate and oval, 5 to 6 mm. long, 4 mm. broad, 1 mm. thick. 



Hypocotyl erect, terete, pale green to reddish, up to 2*5 

 cm. long, 2 mm. thick at base, 1 mm. at apex, glabrous. 



Cotyledons sessile, auricled, ovate-oblong to oblong-oval; 

 somewhat fleshy, 7 to 8 mm. long, 4*2 to 5 mm. broad, outer 

 or underside at first pale to yellowish-green, becoming 

 green, inner or upperside green, midrib sometimes distinct, 

 with a few lateral veins showing under pocket lens, becom- 

 ing horizontal in a few days, later folded down past the 

 middle, often remaining until the phyllodes appear. 



Stem terete, varying from green to red, glabrous. First 

 internode *5 mm.; second 1 to 3 mm.; third 2 to 7 mm.; 

 fourth 3 to 8 mm.; fifth 4 mm. to 1*5 cm. 



Leaves — No. 1. Abruptly pinnate, petiole 3 to 7 mm. long, 

 reddish-green, glabrous; leaflets two pairs, 5 mm. to l'l cm. 

 long, 3 to 4 mm. broad, obovate-oblong to oblong-acuminate, 

 sometimes mucronate, midrib and secondary vein fairly 

 distinct, sometimes distinctly triplinerved, upperside green, 

 underside paler, petiolules often reddish; rachis 3 to 7 mm. 

 long, green, glabrous, excurrent ; stipules reduced to scales. 



No. 2. Abruptly bipinnate, petiole 6 mm. to 1*5 cm. long, 

 green, glabrous, excurrent ; leaflets two to three pairs, not 



1 See reference to an apparent tripinnate leaf on this species. (Supra). 



