101 
ARBOR V I T jE. 
(L’Arbre de Vie. Fr.) 
Natural Order , Cupressin^. (Richard.) Lmncean Classifi- 
cation , Monoecia Monadelphia. 
T H UJA. # (T OURNEFORT.) 
Monoecious. — Male ament terminal, small and ovoid. Stamens many, 
naked, inserted on a common axis, filaments excentrically peltate, 
loosely imbricated; anthers 4-celled, opening lengthways. Female 
ament terminal, small; the scales spreading, imbricated in 4 ranks. 
Ovules a pair at the base of each scale, erect. The strobile formed of 
imbricated woody scales, each having a reflected mucronate subterminal 
point. Seeds under each scale 2, with a long or membranaceous testa, on 
each side winged. The embryo inserted in the axis of a fleshy albumen 
of its own length: cotyledones 2, oblong; radicle superior. 
Sempervirent trees of Asia and North America, with compressed 
branchlets, clothed with minute compressed and imbricated ovate leaves, 
with the buds naked. 
* Derived from $v6v sacrifice, in reference to its use in the East. 
Vol. iii. — 14 
