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anthelminthic. Several other species of Artemisia deserve 
cultivation for medicinal purposes. Active principles : — 
Ahsinthin, an oily substance, indurating to a crystalline 
mass ; a volatile oil peculiar to the species. 
Artemisia Dracunculus, L. 
The Tarragon or Estragon. North Asia. A perennial 
herb, used as a condiment. Its flavour rests on two volatile 
oils, one of them peculiar to the plant. 
Arundinaria falcata, Nees. 
Nepaul. One of the hardiest kinds of the Bamboo tribe. It 
rises to the height of 20 feet, the canes attaining a diameter 
of I inches. 
Arundinaria macrosperma, Michaux. 
Southern States of North America, — particularly on the 
Missisippi. This Bamboo-like reed forms there the cane- 
brakes. It requires to be replanted after flowering in the 
course of years. Height 20 feet. 
Arundo Donax, E. 
The tall evergreen lasting Bamboo-reed of South Europe 
and Nortli Africa. It is one of the most important plants 
of its class for quickly producing a peculiar scenic effect in 
picturesque plantations, also for intercepting at once the 
view to unsightly objects, and for giving early shelter. The 
canes can be used for fishing-rods. 
Arundo Pliniana, Turr. 
On the Mediterranean and Adriatic Seas. A smaller plant 
than A. Donax, with more slender stems and narrower 
leaves, but similarly evergreen, and resembhug the Donax 
reed also in its roots. 
Arundo saccharoides, E. v. M. 
( Oijnerhm saccharoides, Humboldt.) 
Northern parts of South America. This species is here not 
yet introduced ; but it is likely to prove hardy. Like the 
following, it is conspicuously magnificent. 
