Hawaii

This paper is a report on a collection of plants made during an 11-month stay in Samoa, from August to November 1929, and from June 1931 to January 1932, and on other Samoan collections of plants in Bernice.

Land snails of the genus Partula, inhabiting the high islands of the Pacific Ocean, have provided exceptional opportunities for studies on the origin and differentiation of species. The endemic taxa of Moorea, in French Polynesia, have been particularly well studied.

18 abstracts from the symposium, 30 May 1991, Honolulu Hawaii, XVII Pacific Science Congress - on introduced alien species and their impacts on Pacific island ecosystems and biodiversity.

Verbesina encelioides (Cav.) Benth. & Hook. f. ex A. Gray, golden crownbeard, is a sunflower-like herbaceous annual plant ranging in height from 0.3 to 1.7 m with showy yellow flowers. It is native to the southwestern United States, the Mexican Plateau, and other parts of tropical America. Its invasive characteristics include high seed production (as many as 300-350 seeds per flower and multiple flowers per plant), seed dormancy, ability to tolerate dry conditions, and possible allelopathic effects.