198 Key to the System of 



Phyllodia usually lanceolar. 



Tall shrub ; phyllodia firm, narrow-lanceolar, the middle 

 venule prominent, the other longitudinal venules very 

 close and immersed ; spikes rather short, dense, solitary 

 or two together ; fruit unknown. A. subtilinervis. 



945. Phyllodia lanceolar- or "broad-linear, much elongated, 



the middle venule more prominent than the others. 



Tall-shrubby or finally arboreous ; phyllodia rigid, nearly or 

 quite glabrous, closely streaked by thin longitudinal 

 venules ; spikes solitary or two or few together, dense ; 

 fruit linear-cylindrical, somewhat flexuous ; seeds small, 

 black, shining, ellipsoid ; arillar appendage short, pale, 

 touching only the base of the seed. A. Doratoxylon. 



Phyllodia elongate- or narrow-lanceolar; three to five 

 of their numerous longitudinal venules more promi- 

 nent than the others. 



Arboreous, finally tall ; phyllodia large, often closely in- 

 vested with minute greyish or at first yellowish hairlets ; 

 spikes solitary or two or few together ; calyx invested 

 with short hairlets ; fruit narrow, irregularly twisted or 

 somewhat coiled ; seeds small, ellipsoid, black, shining; 

 arillar appendage pale, clasping the lower portion of the 

 seed, somewhat lengthened downward. 



A. glaucescens. 



946. Headlets of flowers solitary. 



Shrubby, seldom tall ; branchlets beset with soft hairlets ; 

 pinnae generally in two pairs ; leaflets two- to six-paired, 

 very small, from lanceolar- to obovate-elliptical, flat ; 

 headlets of flowers conspicuously stalked ; fruit broad- 

 or elliptic-linear, compressed ; arillar appendage pale, 

 pointed, about half as long as the seed. Figure 51. 



A. Mitchell!. 



Headlets of flowers in simple or oftener in paniculated 

 racemes .. ... .. ... ... ... 947 



947. Pinnae usually in few pairs. 



Tall-shrubby or arboreous; leaflets in several or many pairs, 

 rather small, somewhat rigid, from ovate- to elliptic- 

 lanceolar, much paler beneath ; flowers several in each 

 headlet ; fruit narrowly elongate-elliptical, flat ; arillar 

 appendage pale, pointed, about half as long as the seed. 



A. discolor. 



Pinnae usually in many pairs... ... ... ... 948 



