C. H. Ostenfeld: Contributions to West Australian Botany. II. 5 



in the course of a few days a downpour which exceeds the yearly- 

 average. Thus I was told in 1914 that Onslow had had practic- 



Fig. 1. Rainfall Map of Western Australia showing isohyets (in inches). 



(From Yearbook of the Commonwealth of Australia, 1913, 



after Jutson, Geo). Surv. Bull. 61, 1914). 



ally no rain during the past 4 years. On the other hand, a rain- 

 fall of 928 mm (29.41 inches) in 3 days is recorded, in 1898, for 



