( 326 ) 
Mine, San Bernardino Mountains, Parish 3456; eastern slope of 
Mount San Jacinto, 800 meters, Leiberg 3163. 
5. Pinus Torreyana Parry, Bot. Mex. Bound. 210, pl. 58, 50. 
1859. 
Pinus lophosperma Lindl. Gard. Chron. 1860: 46. 1860. 
Type locality; “Bluffs near the mouth of Solidad Creek, 10 
miles north of San Diego, California.” 
Distribution: The Del Mar or Torrey pine has the most re- 
stricted range of any pine in North America. It extends along 
the coast in the vicinity of Soledad River, San Diego County, for 
about 8 miles and inland 2 or 3 miles. In addition to this one 
locality it has been found only on the east end of Santa Rosa 
Island. Upper Sonoran or Lower Sonoran. 
Specimens examined: Santa Rosa Island, Blanche Trask, Oct. 
1900; Soledad, Pringle, April 26, 1882; Dudley, July 24, 1899. 
6. Pinus PONDEROSA Dougl.; Lawson, Man. Agr. 354. 1836. 
Type locality: Washington, on the Spokane River, according 
to Piper. 
Distribution: The western yellow pine is the most charac- 
teristic tree of the Western Arid Area of the Transition Zone, 
extending from British Columbia southward to western New 
Mexico and southern California. In southern California this pine 
is common throughout the Transition Zone of all the mountain 
ranges. 
Specimens examined: Water Canyon, Tehachapi Mountains, 
Abrams &% McGregor 478; Tejon Pass, Coville 9 Funston 1223; 
Santa Ana Canyon, San Bernardino Mountains, altitude 1500 
meters, Abrams (F McGregor, July 14, 1908. 
6a. PINUS PONDEROSA JEFFREYI (Murray) Vasey, Rep. Com. Agr. 
1875: 179. 1876. 
Pinus Jeffreyi Murray, Rep. Bot. Exped. Oreg. 2, pl. r. 1853. 
Pinus deflexa Torr. Bot. Mex. Bound. 209. 1859. 
Type locality: “Shasta Valley, N. California.” 
Distribution: Cascade Mountains of southern Oregon southward 
through the Sierra Nevada and southern California to San Pedro 
Martir. The separation of this pine from typical Pinus ponderosa 
