(327) 
is often difficult in southern California. Some trees with plated 
bark have small cones, and others have cones fully as large as any of 
the variety. Both extremes also occur on trees with the darker 
furrowed bark. In almost any locality, but especially in the 
vicinity of Green Valley, San Bernardino Mountains, it is possible 
to gather a series of cones ranging in size from the typical to that 
of the variety. 
Specimens examined: Mount Pinos, Abrams 9 McGregor 241; 
Mount San Gorgonio, Dutton, 1897; mountains east of San Diego, 
Parry, 1850. 
7. Pinus Sapintana Dougl. Trans. Linn. Soc. 16: 749. 1833. 
Type locality: Indefinite, but probably from the mountains 
near San Juan Mission, Monterey County. Douglas forwarded 
his paper in which this species was described from this place. 
Distribution: The digger pine is characteristic of the Intra- 
montane District, occupying a distinct belt below the Sierran 
District on the western slope of the Sierra Nevada, and on the 
inner Coast Ranges. A few trees penetrate through Tejon Pass 
and extend southward along the western margin of Antelope 
Valley to Elizabeth Lake, Liebre Mountains. Upper Sonoran. 
Specimens examined: Oakgrove Canyon, Liebre Mountains, 
Abrams &§ McGregor 399. 
8. Pinus~-CoutTer1 Lamb. in Don, Trans. Linn. Soc. 17: 440. 
1837. 
Pinus macrocarpa Lindl. Bot. Reg. Misc. 61. 1840. 
Pinus Sabiniana Coulteri Don; Loud. Arb. et Fruti. 4: 2250. 
1838. 
Type locality: “On the mountains of Santa Lucia near the 
Mission of San Antonio, in latitude 36°, within sight of the sea 
and at an elevation of from 3000 to 4000 feet above the sea.” 
Distribution: Coulter’s pine occurs in the Coast Ranges of 
California from the vicinity of Mount Diablo south to the Cuiamaca 
Mountains. In southern California it is scattered, usually spar- 
ingly, through the coniferous forests of the San Gabriel, the San 
Bernardino, the San Jacinto and the Cuiamaca Mountains. In 
the latter range it forms considerable forest around Julian. Tran- 
sition. 
