308 



ISLAND LIFE. 



[part II. 



article was written. The most remarkable feature here is tiie 

 great abundance of Lobeliacese, a character of the flora which is 

 probably unique ; while the superiority of Labiatse to Legumi- 

 nosse and the scarcity of Eosacese and Orchidacese are also very 

 unusual. Composites, as in most temperate floras, stand at the 

 head of the list, and as these have been carefully studied by Mr. 

 Bentham, it will be interesting to note the affinities which they 

 indicate. Omitting four genera and species which are cosmo- 

 politan, and have no doubt entered with civilised man, there 

 remain twelve genera and forty-four species of Compositse in the 

 islands. All the species are peculiar, as are six of the genera ; 

 and in another genus, Coreopsis, the six species form a peculiar 

 named section or subgenus, Campylotheca ; while the genus 

 Lipochseta with ten species is only known elsewhere in the 

 Galapagos, where a single species occurs. We may therefore 

 consider that eight out of the twelve genera of Hawaiian Com- 

 positfe are really confined to the Archipelago. The relations of 

 the genera are thus given by Mr. Bentham : — 



No of 



Species. External Relations of the Species. 



Lagenophora 1 With the Old World and Extra-Tropical America. 



Aster 1 American and Extra-Tropical Old World. 



Tetramolobiura 6 South Extra-Tropical American. 



Vittadinia 1 South Extra-Tropical American and Australian. 



Campylotheca (s.g) 6 With the Tropical American and very few Old 



World species of Coreopsis and Bideris. 



Bidens 1 The Tropical American species. 



Lipochgeta 10 American Wedelioidas and HelianthioidEe. 



Argyroxiphium 2 With Madiese of the Mexican region. 



Wilkesia 1 With Madiese of the Mexican region. 



Dubantia 3 Distantly with Madieas and Gaiinsogese of the 



Mexican region. 



Eaillardia 11 With Raillardella of the Mexican region. 



Hesperomannia 1 With Stitftia and Wunderlichia of the Brazilian 



The great preponderance of American relations of the Com- 

 positae, as above indicated, is very interesting and suggestive. 

 It is here that we meet with some of the most isolated and re- 

 markable forms, implying great antiquity ; and when we consider 

 the enormous extent and world-wide distribution of this order 



