262 FOREST CULTURE AND 
Artemisia Absinthium, L.—The Wormwood. Eu- 
rope, North and Middlé Asia, and North Africa. <A 
perennial herb, valuable as a tonic and anthelminthie. 
Several other species of Artemisia deserve cultivation 
for medicinal purposes. Active principles: Absin- 
thin, an oily substance, indurating to a crystalline 
mass; a volatile oil peculiar to the species. 
Artemisia Dracunculus, L.—The Tarragon, or Es- 
tragon. North Asia. A perennial herb, used as a 
condiment. The flavor 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 twenty feet, the canes attaining a diameter 
of four inches. 
Arundinaria macrosperma, Michaux. — Southern 
States of North America, particularly on the Missis- 
sippi. 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, L.—The tall evergreen, lasting 
Bamboo-reed of South Europe and North Africa. It 
is one of the most important plants of its class for 
quickly producing a peculiar scenic effect in pictur- 
esque plantations ; also, for intercepting at once the 
view of unsightly objects, and for giving early shel- 
ter. 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 resembling the Donax reed 
also in its roots. : 
Arundo saccharoides, F.v,M. (Gynerium saccha- 
