92 DUDLEY MEMORIAL VOLUME 



apophysis elongated-pyramidal, gradually narrowed into straight or incurved 

 umbo; seed y 2 inch long. 



Tree 80 feet high, forming a loose pyramidal head. Native of the 

 Coast Ranges of California. Trees are planted in the Roble Garden near 

 the Museum and elsewhere. 



11. Pinus Jeffreyi Murry. Jeffrey's Pine. 



Leaves stout, 5-8 inches long, pale bluish green; cones conic-ovate, 

 light brown, 6-12 inches long; apophysis depressed, keeled; umbo elongated 

 into a slender recurved spine; seed about ^ inch long. 



Forest tree attaining a height of nearly 200 feet, with short spreading 

 branches forming an open pyramidal head. Native of the mountains of 

 Oregon and California. Specimens are in the Nursery south of the lath- 

 house. 



12. Pinus ponderosa Dougl. Western Yellow Pine. 

 Branchlets reddish brown; leaves dark yellowish green, 5-10 inches 



long; cones ovate-oblong, light reddish brown, 3^-5 inches long; apophysis 

 flattened, keeled; umbo triangular, ending in a stout, straight or incurved 

 prickle; seed % inch long; wing 1 inch long. 



Tree 150 or occasionally 230 feet, forming a spire-like head. Native 

 of western America, extending from British Columbia to Mexico, and from 

 western Nebraska and Texas to California. A row of trees is west of the 

 Nursery lath-house, others are between University Avenue and the Mausoleum, 

 and a few large trees are north of the Stanford Residence. 



13. Pinus canariensis C. Sm. Canary Island Pine. 

 Branchlets yellowish; leaves slender, 8-11 inches long, light green, flexi- 

 ble, usually drooping, flattened; cones ovoid, 4-7 inches long, light brown, 

 lustrous; apophysis low-pyramidal, umbo obtuse or sometimes depressed; 

 seed ^2 inch long. 



Tree 80 feet high with slender branches forming a round-topped head. 

 Native of the Canary Islands and Teneriffe. Several trees are west of the 

 Nursery and one near Mausoleum Avenue. Some of the trees west of the 

 nursery which weite severely burned three or four years ago are sending out 

 new shoots from the burned branches and trunks. The primary leaves on 

 these shoots are silvery glaucous. 



14. Pinus radiata Gord. Monterey Pine. 



Leaves bright green, 3-6 inches long ; cones light brown, lustrous, conic- 

 ovate, unsymmetrical, 3-5 inches long, 2-4 inches broad; scales on upper sur- 



