BY JAMES STIRLING, F.G.S., F.L.S. 1053 



different situations as regards humidity, dryness, &c, consist in 

 the thickness of the leaves, and in their being covered (in the sub- 

 alpine varieties) with a dense stellate down on the underside ; the 

 petals are also more tomentose, the flowers larger, and the branches 

 more frequently covered with prominent glandular tubercles. 



According to Bentham and Mueller, (1) this species has an 

 extensive territorial range along Eastern Australia, from Queens- 

 land to Tasmania. 



BORONIA ALGIDA, F. V. M. 



According to the authors of the ' Flora Australiensis,' the genus 

 Boronia is limited to Australia. Of 58 species admitted by Baron 

 Mueller in his ' Census,' more than half (35 species) flourish in 

 Western Australia, while in the other colonies the numerical 

 proportions are as follows : — 



North Australia and Queensland 20 species. 



New South Wales 13 „ 



Victoria 8 ,, 



South Australia , 7 ,, 



Tasmania 7 ,, 



So far as I am aware, there are only two distinct species in the 

 Australian Alps, one of which is restricted to the highest 

 elevations and is a very stable species, while the other extends 

 over all elevations, and is a very variable one. The former (B. 

 algida,) is a small dwarfed undershrub, found on the summits of 

 most of the highest peaks from Mount Howitt to Mount Kosciusko 

 and apparently does not descend below 5,000 feet. As previously 

 remarked elsewhere, " it appears to be governed in its distri- 

 bution more by climatic conditions than by the character of the 

 soil or geological formation." (2) 



Boronia polygalifolia., Smith. 



This ubiquitous species, which extends from Queensland through 

 New South Wales and Victoria to South Australia and Tasmania, 



(1) Flora Australiensis, Vol. I, p. 307. 



(2) Trans. Roy. Soc. Victoria, 1884, p. 32. Phanerogamia of Mitta Mitta. 



