INTRODUCED PLANTS OF POLYNESIA. 



339 



Bromelia ananas, the pine-apple, is now cultivated at Taheiti, at 

 Samoa, and at the Feejee Islands. The plant was also seen, cul- 

 tivated, at Sydney. 



Furcraa gigantea, has been introduced from Brazil into the Hawaiian 

 Islands. 



Commelina. — A species, has been introduced into Madeira ; and appa- 

 rently, with taro culture. I have not compared the specimens with 

 Polynesian. 



Cohcasia esculenta, the taro, already noticed as of aboriginal introduc- 

 tion in Polynesia. — It is now extensively cultivated at Madeira. 



Typha, a species, growing in one locality on Taheiti ; and I am in- 

 clined to suspect that it was introduced ; either from Peru, or from 

 New Zealand. The question, may probably be decided by a com- 

 parison of specimens. 



Poa annua, was seen, naturalized, at the Hawaiian Islands, and in 

 New Zealand. 



Digitaria sanguinale, already noticed as apparently an aboriginal weed 

 in Polynesia. — The plant has been introduced into St. Helena. 



Panicum capillare, a grass well known in the United States, has been 

 introduced into the Hawaiian Islands. 



Eleusine Indica, already noticed as apparently an aboriginal weed, at 

 the central groups. — But at the Hawaiian Islands, the plant, ac- 

 cording to some, had been introduced by the Whites; and resi- 

 dents further assured me, that it had increased within a few years. 



Eragrostis capillaris ? naturalized at the Hawaiian Islands. 



Briza media, naturalized at the Hawaiian Islands. And also, in Aus- 

 tralia. 



Kyllingia monocephala, already noticed as an aboriginal weed in Poly- 

 nesia. — The plant has been introduced into St. Helena ; and it was 

 seen also, at Rio Janeiro, and in Peru. 



