144 



officinale, Maiva rotundifolia, Erodium cicutarium, Urtica 

 urens, Silene Gallica, Stellaria media, Cerastiuin vulgatum, 

 Chenopodiuin glaucum. Polygonum aviculare, Vicia sativa, Medi- 

 cago denticulata, Melilotus parviflorus, Alchemilla arvensis, 

 Centaurea melitensis, Onopordium acanthium, Hypocliseris 

 glabra, Sonelius oleraceus, Cryptostemma caiendulacea, Picris 

 hieracioides, Anagallis arvensis, Plantago lanceolata, Lithos- 

 permum arvense, Lolium perenne, L. temulentum, Hordeum 

 murinum, Bromus sterilis, B. mollis, Briza minor, Phalaris Can- 

 ariensis, P. minor, Festuca rigida, Y. elatior (?), Poa annua 

 and Avena fatua. Marrubium vulgare, Celsia cretica and 

 Solanum sodomaeum liave also become naturalized. 



Intee-pbovincial Eelatioi^ships. 

 The florula of Kangaroo Island is made up of : — 

 Peculiar species ... ... ... 11 



Cosmopolitan species ... ... 55 



Australian species ... ... 349 



Total 415 



Tbe very large proportion of continental species — about 97 

 per cent. — indicates that the island from a botanical point of 

 view has not long been isolated. And it is obvious, that we 

 should turn our attention to the flora of the adjacent parts of 

 the mainland to elucidate this former connection. 



Of the 348 Australian species inhabiting Kangaroo Island, 

 186 form part of the AVest Australian flora, 335 occur in South 

 Australia, 203 in Tasmania, and 309 in Victoria. 



By numbers only, it is clear, that the plants of Kangaroo 

 Island have the greatest specific identity with those of South 

 Australia. Of the twelve Australian species, not yet found on 

 the mainland of South Australia, seven are proper to the 

 south-east part of Australia including Tasmania ; one also is 

 Victorian only, and two belong to "West Australia. On the 

 whole. Kangaroo Island contains a larger number of south-east 

 species than any other part of South Australia, excepting the 

 Mount Gambier district, which is botanically a part of 

 Southern Victoria. In Kangaroo Island we have the meeting 

 ground of West Australian and Tasmanian species, which here 

 find their eastern and western limits respectively. Of the 

 eastern species not less than 68 do not pass beyond the meri- 

 dian of St. Vincent Gulf on the mainland ; whilst Daviesia 

 incrassata, Pomaderris ohcordata, Adenanthos sei'iceus, Styplielia 

 striata, are not known wejjt of Kangaroo Island. It is also 

 worthy of remark, that among the commonest species in 

 Kangaroo Island there are 21 of West Australian origin, 

 eleven of which do not extend to the Victorian frontier, eight 



