42 



Discussiox. 



Professor Tate, in tlie course of his remarks, stated that of 

 the sixteen species of Proteacece inhabiting the alpine region 

 about Omeo four of them occur in South Australia. They 

 are : — 



JBanksia marginata and Hakea rugosa, which he regarded as 

 lowland plants straggling to high elevations ; they flourish in 

 the warm regions wherein the annual rainfall is not below 20 

 inches. The latter species he considered to be of South Aus- 

 tralian origin. 



Fersoonia juniper ina is, in South Australia, restricted to the 

 Mount Lofty and Willunga Eanges, and descends rarely below 

 about 1,500 feet elevation. He was inclined to claim it as a 

 survival of an alpine flora of Pliocene date. 



Grevillea parviflora in a varietal form is known from two 

 stations on Kangaroo Island, on rich loam in river valleys, both 

 at elevations not much above sea level. The Kangaroo Island 

 plant is readily separable from the alpine one, and he thought 

 that it had fair claim to subspecific rank as G. lialmaturina. 



