CEDARS 307 



0'75 mm.); soft, bright green, solitary and spiral on the 

 long shoots, closely fascicled and of unequal lengths on 

 the tuberculate dwarf shoots ; the tufts distant. Narrow- 

 linear, obtuse, obscurely keeled above, strongly beneath. 

 Venation simple. Two resin-canals : one at each angle 

 of the leaf. Vascular bundle single. Dying leaves yellow. 

 [The Larch is the only European Conifer with deciduous 

 leaves.] 



Jf Jf Leaves dark green and rigid, ever- 

 green. 



Oedrus Libani, Loud. Cedar of Lebanon. Large 

 spreading tree, with dark evergreen terraced foliage. 

 Leaves coriaceous and rigid, acicular, somewhat tetragonal, 

 pungent, scattered spirally on short pulvini on the long 

 shoots, and 20 40 mm. long ; in fascicles of 25 50 or 

 more on the tuberculate dwarf shoots, and 12 15 mm. 

 long; dark green and evergreen, persisting 3 4 or 5 years. 

 Dying leaves brown. Stomata on the lower surface. Vena- 

 tion simple. Vascular bundle undivided. 



[Cedrus Deodara, Loud., the Deodar of the Himalayas, 

 and C. Atlantica (Manetti), the Atlas Cedar of N. Africa, 

 are geographical races of the same species, differing in 

 habit, length of leaves, size of cones, &c. 



Generally speaking, these characters may be summed 

 up as follows, but they graduate considerably as the 

 trees advance in age. 



In Cedrus Libani, the habit is more tabular and 

 terraced, the leaves of medium length, and the cones 

 about 10 15 cm. long. 



In C. Atlantica, the habit is more rigid and less 

 tabular, the leaves shorter and stiflfer and more silvery 

 glaucous, and the cones smaller. Stomata chiefly on the 

 upper surface, according to Masters. 



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