4 



CONIFEROUS TREES AND SHRUBBERY OF SAN DIEGO COUNTY. 



California is the native home of many stately forest trees, among them 

 being the giant redwood or Sequoia gigantea — the largest tree known in the 

 world, though Australia produces in her Eucalyptus the tallest on record. 

 Many of the most beautiful known evergreens are natives of the Golden 

 State, and a very fair proportion occur within the present restricted area of 

 San Diego county. 



The following is a brief list of the cone-bearing trees credited to San 

 Diego county, with some brief references to more extended dscriptions. 

 ABIES (Tournefort) Linnaeus, Fl Lapp 277 (1737); Link, in Linnaea 15 



(1851) 525. Orcutt, Am pi 1:347 D. 

 A. concolor Lindl & Gord. in J Hort Soc 5:210 (1850). Orcutt, Am pi 



1:347 D. 



PINUS (Tournefort) Linnaeus Syst ed 1 (1735). Orcutt Am pi 1:348 D. 

 P. atteimata Lemmon, based on P. tuberculata Gordon 1849 non Don, 

 183 6. Orcutt, Am pi 1:348 D. 



Credited to the southern slope of the San Bernardino mountains, but 

 not known from San Diego county. 



P. Conlteri D. Don, in Linnaean soc tr 17:440 (1837). Orcutt, Am pi 

 1:190, 348 D. 



P. flexilis James, in Long's Exped 2:27, 35. Orcutt, Am pi 1:349 D. 



Summits of San Gorgonio, San Jacinto and Santa Rosa mountains, in 

 Southern California. 



P. mouophylla Torrey and Fremont, Rep 319 t. 4. Orcutt, Am pi 1:349 D. 



P. Fremontiana Endl, Syn Conif 183, in part, not Gord. 



Confined to the eastern slopes of the mountains bordering the Colorado 

 Desert, in California and Baja California; perhaps more abundant in Ne- 

 vada, southern Utah and Arizona, where it is well known as the Nut pine — - 

 one of the pinyones of the Mexicans, the seeds forming an important article 

 of food to the Indians in primitive days. 



P. Murr&yaua (Balf.) Bot Exped Oreg 2, cum ic; A. Murr, in Bot Soc 

 Edinb tr 6:351 (18 60). Orcutt, Am pi 1:349 D. 



Engelmann, Bot Gal 2:12 6, treated this as a variety of P. contorta. 

 Abrams includes in his Flora of Los Angeles, page 4, and it extends to 

 Oregon, Utah and Colorado. 



P. . Parryana Engelmann, in Am J Sc, sr 2, 34:332, in note (1862). Orcutt, 

 Am pi 1:94, 349 D. 



P. quadrifolia Parry, ex Pari in DC Prodr 14 (2): 402. 



This is the beautiful Pinyone pine of the mountain table lands of Baja 

 California, the thin-shelled nuts being collected and roasted by the Indians 

 for food. Some years they have been brought to the San Diego markets in 

 great quantities, but the Indians who formerly harvested them are nearly 

 extinct or scattered. 'They would gather the ripe cones and branches in 

 layers, and burn, so that the cones would readily open and yield the delic- 

 ious roasted nuts. The tree is often very symmetrical, but has not so far 

 been made to thrive near the coast, 



P. Lambertiana Douglas in Linn soc tr 15:500 (1827). Orcutt, Am pi 

 1:190 D. 



A tree of gigantic dimensions, 150-300 ft hi, and 10-20 ft in diarn, with 

 light brown smoothish bark splitting in small sections: Ivs 3% -4 i long, 

 rigid, with 5 or 6 lines of stomata on each of the 3 sides: male fte oval, % i 

 long, with 10-15 involucral scales; anth denticulate-crested: cones cylin- 

 drical, bright brown, 12-18 i long and 3 or 4 i wide, on peduncles 3 i in 

 length: sds smooth, black, 6 11 long; wing not quite twice as long, widest 

 below the middle, obtuse cotyledons 13-15. 



"The exudation from the partially burned tree loses its resinous qual- 



