Vol.1] Hall. — Botanical Survey of San Jacinto Mountain. 53 



Libocedrus decurrens Torr. Incense Cedar. 



Commonly met with from the lower edge of the pine belt up 

 to about 8000 ft. alt., but it is nowhere abundant. (See p. 22.) 



Pinus Coulteri Don. Coulter Pine. 



This pine is not rare along the lower edge of the forest belt 

 on the south and west sides and sometimes runs well up into the 

 forests of Yellow Pine, being found as high as 7500 ft. alt., 

 above Strawberry Valley ; but is evidently not suited to the more 

 arid conditions of those slopes which face the desert as it was not 

 found on the north and east sides. (See p. 20.) 



Pinus flexilis James. Limber Pine. 



The dominant tree on the high slopes and ridges around San 

 Jacinto and Marion Peaks; also plentiful on Tahquitz Peak. It 

 was found as low as 8200 ft. alt., but it is less common in the 

 lower part of its range. (See pp. 24-25.) 



Pinus Lambertiana Dougl. Sugar Pine. 



The Sugar Pine ranges from an altitude of 5000 ft. to the 

 upper limits of the Transition Zone, usually in scattered patches 

 but occasionally forming small groves. (See p. 22.) 



Pinus Murrayana Miirr. P. contorta Murrayana Engelm. 



Murray Pine. Lodge Pole Pine. 



This is the characteristic pine of the Canadian Zone but also 

 ranges throughout the Hudsonian and is plentiful on the highest 

 ridges. Its altitudinal range on San Jacinto is from 8000 to 

 10,800 ft. (See pp. 23-24.) 



Pinus ponderosa Laws. Yellow Pine. 



The Yellow Pine is by far the most abundant and important 

 tree on the mountain, where it occupies the Transition Zone, 

 being the dominant tree in the Lower Transition and exceeded in 

 numbers in the Upper Transition only by the White Fir. (See 

 pp.. 20-22.) 



Pinus ponderosa Jeffreyi {Murr.) Vas. U. S. Dept. Agr. 



Kept., 1875, 179. P. Jeffreyi Murr., Kept. Oreg. Exped. ii. 



t. 1 (1853). Jeffrey Pine. 



This variety is usually found at higher altitudes than the last, 

 ranging from 5200 ft. to 9300 ft. alt. (See pp. 20-22.) 



