BOTANY. 385 



support, but more commonly reclines on the ground, 

 or twines its flexible stem around the trunk and 

 branches of large trees. 



Oahu, Sandwich Isles ; native name ie. 



DICECIA. DIANDRIA. 



Vallisneria spiralis. Grows on the branches of trees. 

 Society Isles. 



DICECIA. TETRANDIA. 



Broussonetia papyri/era. Paper Mulberry Tree. 

 This species seldom exceeds the size of a shrub ; its 

 foliage is dark green, has a very handsome appearance, 

 and is composed of two forms of leaf ; the first or 

 principal series being broad and deeply incised, the 

 second narrow, entire, and lanceolate. The inner bark 

 of the tree is one of the materials used by the Sandwich 

 Islanders for the manufacture of their primitive cloth ; 

 the Japanese prepare from it a similar fabric, which 

 they apply to the uses of paper, whence the trivial 

 name of the plant. The species has been largely cul- 

 tivated in France, as food for the silk-worm, andj has 

 been found to grow with greater rapidity than the 

 common edible mulberry-trees, and to bear a low 

 temperature without injury : the experiments of M. 

 Loiseleur Deslonchamps prove, however, that the leaves 

 of this tree are prejudicial to silk-worms. 



Pitcairn Island. Society Isles; native name auti. 

 Sandwich Group, wauti. Marquesas. 



DICECIA. HEXANDBIA. 



Bioscorea sativa and aculeata. The Yam. These 

 plants are herbaceous and disposed to climb, but 



VOL. II. 2 C 



