GYMNOSPERMS ON STANFORD GROUNDS ABRAMS 95 



A genus of three closely allied species, confined to northern Africa, 

 Asia Minor and the Himalaya Mountains. These are the true cedars, 

 although the name is applied to a number of totally different genera, such as 

 Libocedrus, Juniperus, Thuja and Chamcecyparis. 

 Branches stiff horizontal or ascending, not pendulous; cones truncate and 



often concave at apex. 

 Branches mostly ascending; leading shoots not nodding; leaves mostly 



less than 1 inch long, thicker than broad. 1. C. atlantica. 

 Branches horizontal; leading shoots nodding; leaves 1-1 J4 inches long, 



broader than thick. 2. C, Libani. 



Branches and leading shoots pendulous; cones obtuse; leaves often 2 inches 

 long. 3. C. Deodar a. 



1. Cedrus atlantica Manetti. Mt. Atlas Cedar. 



Leaves mostly less than 1 inch long, rigid, dark or glaucous green, thicker 

 than broad ; cones 2-3 inches long, light brown. 



A pyramidal tree 120 feet high, with ascending branches and erect, or at 

 least not drooping, leading shoots. A horticultural variety, glauca, has 

 leaves very glaucous with a silvery hue. Native of the mountains of northern 

 Africa. Frequently planted on the University grounds. A handsome speci- 

 men of the variety is east of the Cactus Garden. 



2. Cedrus Libani Barr. Cedar of Lebanon. 



Leaves 1 inch long or more, dark green or in some forms bluish green 

 or even silvery, broader than thick; cones 3-4 inches long, brown. 



Large forest tree, with wide-spreading, horizontal branches and nodding 

 leading shoots. Native of the mountains of Syria and Asia Minor. Two 

 trees are east of the Cactus Garden, near the silver-leaved Mt. Atlas Cedar, 

 and another is in the western part of the Nursery, surrounded by a cluster 

 of the Mt. Atlas Cedar. 



3. Cedrus Deodara Loud. Deodar. 



Leaves 1-2 inches long, dark bluish green, rigid, as thick as broad; 

 cones 3^2-S inches long, reddish brown. 



Large forest tree, often 150 feet high, with branches and leading shoots 

 pendulous. Several horticultural varieties are in cultivation: one, argentea, 

 has silvery leaves. Native of the Himalaya Mountains. Specimens are in 

 Encina and Roble Gardens, and the variety, argentea, is in the Arboretum 

 north of the Mausoleum. 



