ACACIA SEEDLINGS. 



157 



On seedlings of tins species it often happens that while 

 the crown of the plant has only bipinnate leaves, the first 

 phyllodes appear on axillary shoots lower down. 



This is the only species of phyllodineous Acacia so far 

 observed which has eight pairs of pinnae, while only one,. 

 A. rubida, may grow to a greater height before producing 

 any phyllodes, the latter species sometimes reaching ten 

 feet, and flowering while still in the bipinnate stage. 



Plurinerves — (Nervosae). 

 Acacia cyclopis A. Ounn. Seeds from Middleton Beach, 

 Albany, Western Australia (Prof. W. G. Woolnough). 

 (Plate IX, Numbers 1 to 3). 



Seeds black, oval, 5 mm. long, 3 mm. broad, 1*5 mm. thick. 



Hypocotyl terete, pale brown to pink, 1*5 to 2*5 cm. long, 

 about 1*5 mm. thick at base, about '7 mm. at apex. 



Cotyledons sessile, auricled, oval to obovate, 7 mm. long, 

 3'5 mm. broad, upperside dark green, underside brownish- 

 green, with one or two raised lines, becoming revolute. 



Stem terete, hoary. First internode*5mm.; secondlmm.; 

 third 6 to 7 mm.; fourth to sixth 8 mm. to 1*7 cm. 



Leaves — No. 1. Abruptly pinnate, petiole 2 to 4 mm., 

 reddish-green, glabrous; leaflets four pairs, oblong-acumin- 

 ate, up to 6 mm. long, 1*5 mm. broad, midrib showing under 

 pocket lens, upperside green, underside reddish-green to 

 red, margins red, glabrous; rachis 7 to 8 mm., green to 

 reddish-green, glabrous, excurrent. 



No. 2. Abruptly bipinnate, petiole 5 to 7 mm., reddish- 

 green, faintly pilose, excurrent ; leaflets three to four pairs, 

 not always equally pinnate, obliquely oval to ovate, the 

 terminal pair often obovate, mucronate, 3 to 4 mm. long, 

 1*5 to 2*5 mm. broad, upperside green, underside paler, 

 margins red, venation obscure; rachis 5 to 7 mm., green to 

 reddish-green, glabrous; stipules flat, ovate-acuminate, 

 1 mm. long. 



