EUCALYPTUS TREES. 505 
with O. tetraphylla, Cavanilles, O. Deppei, Loddiges, 
O. violacea, Linné, and several others producing tuber- 
ous, starchy, wholesome roots; the first mentioned 
gives the largest yield. As similarly useful may be 
mentioned, among many others: O. crenata, Jacquin, 
from Chile, and O. enneaphyalla, Cavanilles, from the 
Falkland Islands and Magellan’s Straits. 
Pachyma Hoelen, Fries.—China. This large truffle 
occurs particularly in the province of Souchong. Fla- 
vor most agreeable. 
Panax papyrifer, F. v. Mueller. (Arabia papyrifer, 
Hooker, Fatsia papyrifera, Bentham, Tetrapanax pa- 
pyrifer, C. Koch).—Island of Formosa. The Rice pa- 
per-plant, hardy in the lowlands of Victoria, and of 
scenic effect in garden plantations ; the pith furnishes 
the material for the so-called rice-paper. 
Pappea Capensis, Ecklon and Zeyher. —South Africa. 
The fruit of this tree is of the size of a cherry, savory 
and edible. 
Pandanus furcatus, Roxburgh. —This screw pine 
occurs in India up to heights of 4,000 feet, according 
to Mr. S. Kurz; hence it will likely bear our clime, 
and give us a stately plant for scenic group-planting. 
P. pedunculatus, R. Brown, occurs in East Australia 
as far south as 32°, and the same or an allied tall spe- 
cies luxuriates in Howe’s Island. jf 
Pelargonium odoratissimum, Aiton.—South Asia. 
A perennial, trailing herb, from the leaves of which 
a fragrant oil can be distilled. The same remark 
applies to the shrubby P. Radula and P. capitatum 
(Dr. Rosenthal). 
Periandra dulcis, Martius. — Sub-tropical Brazil. 
The sweet root yields liquorice. 
#25 
