32 AUSTRALIAN SUGAR-CANE BEETLES AND THEIR ALLIES. 



Family LEGUMINOS^. 



(4) Acacia aulacocarpa A. Cunn. Black Wattle. 



An erect tree of varied size, sometimes attaining a large 

 height, in either forest or scrnb land. Leaves ashy-green, 

 3-4 in. long by 1 in. broad, tapering at each end. Bark 

 rough, thick, tightly clinging, dark. Flower-spikes 2 or more 

 inches long, narrow, bright yellow. Pod long, narrow, 

 irregularly or spirally twisted, about ^ in. broad. 



The connnon Black Wattle. 



•(1) Acacia polysiachya A. Cunn. Grey Wattle. 



A spreading forest tree of medium height, the bark 

 tightly clinging, rough, greyish. Young In-anches angular 

 at first but .soon becoming rounded and tapering. ■ Leaves 

 somewhat sickle-shaped, narrowed at each end, 6-10 in. long, 

 1-1| in. broad, dark ashy-green. Flower-spikes 1-2 in. long, 

 solitary or two or three together ; flowers yellow, not very 

 close. Pod flexible, not spiral, several inches long, about 

 4 in. broad. 



This tree grows on the low-lying lands at Highleigh, 

 near Gordonvale, and is locally known as the Grey Wattle. 

 In general appearance it closely resembles A. aulacocarpa, 

 but the bark is much lighter in colour. 



(1) Acacia holoscricea A. Cunn. AVhite Wattle. 



A small erect tree, growing on marshy forest land. 

 Leaves closely covered with minute silky white hairs, 4-6 in. 

 long, 1-3 in. broad, or the lower ones much larger. Twigs 

 with three angles. Flower-spikes often 2 or more in. long, 

 yellow. Pod long, narrow, irregularly or spirally twisted, 

 about ^ in. broad. 



A conspicuous tree on account of the whitish appearance 

 of the foliage, from whence it receives its local name. 



(1) Acacia mangium Willd. Broad-leaved Scrub Wattle. 



Erect tree, sometimes attaining a good height (60 ft.). 

 and growing in scrub land. Bark light brown ; twigs with 

 three sharp angles. Leaves rather bright green, not 

 pubescent, with four prominent veins. 5-10 in. long, 2-4 in. 

 broad, ovate. Pod long, narrow, spirally twisted, about ^ in. 

 broad. 



This wattle will be at once distinguished by tlie large, 

 broad leaves. 



(4) Acacia sp. Narrow-leaved Wattle. 



A tall graceful tree, about 40 ft. high, on edge of scrub ; 

 bark light grey, rather smooth. Twigs very slencV^r. Leaves 

 dark green, more or less curved, 6-8 in. long, -|- in. wide, 

 tapering. Flowers and pods unknown. 



Known to us only from the Greenhills area. 

 (1) Acacia flavescens A. Cunn. Cream-flowered Wattle. 



A small erect tree, attaining a height of 30 ft.; bark 

 dark brown, strongly roughened. Young shoots clothed with 



