[Pboc. Kot. Soc. Victoria, 22 (N.S.), Pt. I-, 1909.] 



Art. 11. — Contributions to the Flora of Australia, 

 No. 11} 



BY 



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



(Government Botanist), 



JEAN WHITE, D.Sc. ; and BERTHA REES 



(Victorian Government Eesearch Bursars); 



V^riTH APPENDICES BY 



J. R. TOVEY AND J. W. AUDAS, 



Of the National Herbarium. 



(With Plates III.-X.) 

 [Read 13th May, 1909.] 



Acacia Mackeyana, n. sp., Ewart and White (Leguminosae). 

 In recognition of the services of the Hon. J. E. Mackey 

 towards the establishment of the National Park at Wilson's 

 Promontory. 



Cowcowing, W. Australia, M. Koch. No. 101-3. 



Branches minutely pubescent. Phvllodia shortly petiolate, 

 about 1 cm. in length, pungent, pointed, terete, with from 16 

 to 20 longitudinal striae, pale green, rigid, 1-2 mm. in diameter, 

 fairly numerous, alternate, glabrous ; stipules, if present, 

 deciduous. Flowers grouped into small Heads with about 12 to 

 20 on each head, the peduncles average 5 mm. in length, the 

 heads usually solitary. Five sepals, free except at the extreme 

 base, each sepal has a distinct stalk and himina, both pro- 

 vided with simple transparent hairs, yellow. There are gene- 

 rally 2 larger and 3 smaller sepals to each flower, nearly as long 

 as the petals. Corolla of 5 petals, which are membranous and 



1 No. 10 ill I'roc. Koy. Soc. Yictoria. vol. xxi., 1909, p. 540. 



