140 



Solandri, and dotted here and there with groups of blue-gum 

 trees. 



The central part of the Peninsula — about the sources of Hog 

 Bay E/iver and the tributaries of Deep Creek, is an elevated 

 table-land composed of loose sand or ironstone-gravel resting 

 on a clay ; here the vegetation is like that of the heathy scrub- 

 lands so characteristic of the main mass of the island, though 

 it seems to be much less rich in species. 



Indeed, there appears to be very considerable specific dis- 

 parity between the florula of Dudley Peninsula and that of the 

 other and larger part of the island, but it is premature to deal 

 with the nature and probable causes of the differences. How- 

 ever, in the list of species belonging to the island, I have given 

 such localities as will be of future use in working out the dis- 

 tribution of the species within insular limits. 



COBELATION OF THE FlOEA. 

 EESTKICTED SPECIES. 



The total number of flowering plants and vascular crypto- 

 gams catalogued in the accompanying list is 415 ; of which 

 404 species are continental, leaving about 11 as restricted to 

 the island. 



In the Plora Australiensis, Kangaroo Island is credited with 

 the possession of twelve species not known elsewhere ; how- 

 ever, extended research has reduced that number to eight, and 

 has added three, making a total of eleven. They are as follows : — 



1. Cheirantliera voluhilis*, Bentham. 



2. Bertya rotundifolia, F. v. M. 



3. Lliotzkya glaberrima^ P. v. M. 



4. Melaleuca cylindrica, R. Brown. 



5. Cryptandra TVaterhousei, P. v. M. 



6. Cryptandra halmaturina, P. v. M. 



7. Fetrophila multisecta, P. v. M. 



8. Selichrysum adenopJiorum, P. v. M. 



9. AchnopJiora Tatei, P. v. M. (monotypic genus). 



10. Pultencea viscidula, Tate (inedit). 



11. Sydrocotyle crassiuscula, Tate (inedit). 



The following species, which were established on Kangaroo 

 Island plants, have since been found in extra-limital parts : — 



1. Clienopodium pumilio, R. Brown, is now merged in G. cari- 

 natum, R. Brown, and as such is widely distributed throughout 

 Australia, and reaching to New Caledonia and New Zealand. 



2. Atriplex prostratum, R. Brown, now includes A. microcar- 

 pum, P. V. M., and A. pumilio, R. Brown, and as an aggregate 



* Baron von Mueller includes this under C. linearis. 



