28 SPECIMENS OF PLANTS COLLECTED AT KING GEORGe's SOUND, 



being an erect shrub of several feet in height, and the other being 

 a small prostrate plant, whilst the position of the stamens and the 

 number of the carpels differ matex'ially. 



(2) Gomesperma conferturn, Labill., is peculiar to W. Australia, 

 though in appearance it resembles G. ericinum, DC, which is 

 common to the eastern Colonies and Tasmania, and has the keel- 

 petal horned and the sepals not obtuse. Of the 24 species of the 

 genus 16 occur in W. Australia, II being peculiar to that Colony, 

 and the other 5 extending to S. Australia, Victoria, N. S. Wales, 

 Queensland and Tasmania. C. scoparium, Steetz, G. voluhile, 

 Labill., and G. calymega, Labill., are the only species which have 

 travelled from the west to N. S. Wales. 



(3) Tetratheca setigera, Endl., belongs to a genus almost exclu- 

 sively W. Australian, only two species, T. ericifolia, Sui., and 

 T. juncea, Sm., being known in E. Australia, and these so different 

 in character from the majority of the species as to suggest a long 

 series of ages for their differentiation, that is to say, presuming 

 that the genus which is strictly Australian had its origin in the 

 western part of the continent. Of the small order Tremandrese, 

 the genera Platyiheca and Tremandra are unknown in the east, 

 as well as any species of Tetratheca which have the ovules 

 solitary in each cell, and seeds glabrous and shining. 



(4) Of the genus Boronia, which is known to have about 60 

 species in Australia (Census, F.v.M.), more than half (33) are 

 limited to the west. B. serrulata, Sm., is peculiar to N. S. Wales, 

 but it is nearly allied to B. crenulata, Sm., differing chiefly in its 

 larger and more numerous flowers, the structure of its style, and 

 the hairiness of its filaments. B. heterophylla, F.v.M., belongs to 

 a section of the genus exclusively w^estern, and is characterised 

 by having the sepaline anthers different from the petaline ones. 

 The well known B. meffastigina, Nees, is of the same section. 

 Whilst the species of Boronia are almost equally divided between 

 the west and east, N. S. Wales has a much larger share of the 

 species of Eriostemon and Phebalium, and it is remarkable that 

 only one species, £. difformis, Cunn., is common to the Australian 



