[Proc. Roy. Soc. Victoria, 23 (N.S.), Pt. II., 1911.] 



Art. XXV. — ContribiUions to the Flora of Australia, 



No. 16.' 



BY 



ALFRED J. EWART, D.Sc, Ph.D., F.L.S. 



(Government Botanist and Professor of Botany and Plant Physiology 

 in Melbourne University) ; 



JEAN WHITE, D.Sc. 

 (Lecturer on Botany in Melbourne University) ; 



AND 



BERTHA WOOD 



(Government Research Scholar). 



(With Plates XLIX-LVIf.) 

 [Read 13th October, 1910.] 



Acacia Kochii (W. V. Fitzgerald, MS.), Ewart and White, n.sp. 

 (Leguminosae). (PL XLIX., Figs. 1-5). 



Watheroo Rabbit fence, Max Koch, 1905, No.. 1616. 



A tall shrub, glabrous, with spinescent branches. Phyllodes 

 from .5-1 inch in length, and 1-3 lines broad, slightly falcate, with 

 small pungent points flattened vertically. There is a prominent, 

 almost central vein, and several prominent lateral veins on each 

 side, stipules absent. Peduncles solitary, about ^ an inch long, 

 bearing a small cylindrical spike of about 30-50 crowded flowers. 



Flowers 5-merous, sepals united except at the top, where 

 there are 5 somewhat obtuse lobes. Petals at least twice as 

 long as the sepals, free and slightly pointed at the fi-ee ends. 



Stamens numerous — Fruit much twisted and constricted be- 

 tween the seeds, 2.5-3 inches in length, pointed at both ends. 



The species would come in the Series III., Pungentes of Ben- 

 tham, on account of its possessing phyllodia, spinescent branches 

 and cylindrical inflorescence. This last character would place 

 it into the Sub Series D Spicatae, from which, however, it differs 

 in having 5-merous flowers. In this respect apparently, the de- 

 finition of the subseries might be extended. Baron von Mueller 



1 No. 15 in Proc. Koy. Soc. Victoria, vol. xxiii., Pt. 1, n.s. (1910;, p. 110. 



