174 SOUTH AFRICAN BOTANY 
paripinnate, petiolate, leaflets minute, numerous and 
net-veined, unicostate (in some species the leaves are 
altered to phyllodes, q.v.). 
Inflorescence.—Raceme of capitula. 
Flowers.—Actinomorphic, complete, minute, scented, 
_Calyx.—Gamosepalous, 5, inferior, pale yellow. 
Corolla.—Polypetalous, 5, perigynous, yellow. 
Fic. 96.—Acacia horrida. 
I. Flower-bud (x8). II. Section through flower (x5). ITI. Diagram 
of flower. 
Androecium.—Numerous, free, perigynous. The sta- 
mens have long filaments and hang out of the flower, 
rhaking the whole inflorescence conspicuous. 
Gynoecitum.— One carpel superior, stigma small, 
style long, ovary small and round, ovules numerous, 
placentation marginal (the structure of the ovary can 
only be made out with a microscope, or after pollination 
when it is ripening into fruit). 
