90 GENUS PINUS 



A tall tree with rich green foliage, growing on a strip of coast south of San Francisco, particulariy 

 in Monterey County. It grows also on the islands forming the Santa Barbara Channel and on the 

 Island of Guadeloupe, Lower California. It is remarkably successful in the warmer climates of Eu- 

 rope and of Australasia. The species is distinct in its peculiar cone with rounded apophyses. 

 Plate XXXVn. 



Figs. 819, 820, Cones. Fig. 321, Leaf-fascicle and magnified leaf-section. Fig. 322, Leaf- 

 section from a binate fascicle. Fig. 323, Magnified dermal tissues of the leaf. 



Xm. MAGROCARPAE 



Pits of the ray-cells small. Wing-blade of the seed thick. Cones large. Leaves long and stout. 



This group is remarkable for the size of leaf, conelet, and cone. The peculiar thick seed-wing is 

 more or less obscurely present among the species of the Insignes, but never attains the development 

 that diflFerentiates this group from all other Pines. The leaf-section is notable for the large amount 

 of hypoderm and for the presence of both thick and thin outer walls of the endoderm-cells, both 

 forms appearing in the same leaf. 



Wing-blade with a short membranous extension. 



Leaves in fascicles of 5 64. Torreyana 



Leaves in fascicles of 3 65. Sabiniana 



Wing-blade with a long membranous extension, leaves in fascicles of 3. . .66. Coulteri 



64. PINUS TORREYANA -^ ^ 



1855 P. Torreyana Parry ex Carri^re, Trait. Conif. 326. 

 1860 P. LOPHOSPERMA Lindlcy in Gard. Chron. 46. 



Spring-shoots uninodal, pruinose. Leaves in fascicles of 5, from 20 to 33 cm. long, very stout; 

 resin-ducts medial, hypoderm uniform or somewhat multiform and of many cells. Conelets large, 

 mucronate. Cones from 10 to 15 cm. long, on stout peduncles, broad-ovate, symmetrical, somewhat 

 persistent; apophyses chocolate-brown, prominently pyramidal, the umbo salient and capped with 

 a small mucro; seed- wing short, very thick, the dorsal surface of the nut spotted with the black rem- 

 nants of the spermoderm. 



A tree 10 or 12 metres high, often semi-prostrate in exposed positions, confined to a restricted area 

 on the coast north of San Diego, California, and to the Island of Santa Rosa. This species resem- 

 bles P. Sabiniana in the length of its seed-wing and in the color of its cone, but is distinct in the short 

 triangular umbo, in its pentamerous leaf -fascicles and in the mottled dorsal surface of its nut. 



Plate XXXVni. 



Fig. 324, Cone and seed. Fig. 325, Magnified leaf-section. 



65. PINUS SABINIANA ) 



1833 P. Sabiniana Douglas in Trans. Linn. Soc. xvi. 747. 



Spring-shoots mijtinodal, pruinose. Leaves in fascicles of 3, from 20 to 30 cm. long; resin-ducts 

 medial, hypoderm multiform. Conelets large, their scales tapering to a sharp point. Cones from 15 to 

 25 cm. long, reflexed, ovate, slightly oblique, persistent; apophyses chocolate-brown, very prominent, 

 the curved umbo confluent with the apophysis and with it forming a very large talon-like armature 

 with a sharp apex and a broad thick base; seed-wing very thick, with a short membranous margin, 

 the dorsal surface of the nut uniform in color. 



A tree with sparse gray-green foliage, growing in small groves on the foothills of the Sierra Nevada 

 and Coast Ranges of California. Its three leaves and the uniform color of the nut distinguish it from 



