1921] Smiley: Flora of the Sierra Nevada of California 81 



Range. Central Sierra Nevada. 



Zone. Canadian. 



Specimen examined. Webber Lake, Lemmon, September, 1886, 

 referred doubtfully as the velum appears to be complete. 



The basis for 7. Bolanderi Sonnei is a plant found by C. F. Sonne, 

 October, 1887, in Donner Lake. It has not been seen but the char- 

 acters relied upon to separate it are precisely those distinguishing 

 7. Bolanderi and 7. pygmasa. 



6. PIN ACE AE (PINE FAMILY) 



Strobili woody and dry; leaves diverging from the branches spirally. 

 Strobili pendant and falling intact, the scales persistent. 



Leaves borne on short shoots, in ours in fascicles of two or more; strobilus 



of hard woody bracts 1. Pinus 



Leaves not borne on short shoots, single, with decurrent woody bases, these 



persistent on the branches; bracts of strobilus thin 2. Tsuga 



Strobili erect, their scales deciduous from the persisting axis 3. Abies 



Strobili fleshy and berry -like; leaves opposite and appressed, or in whorls and 

 diverging 4. Juniperus 



1. PINTJS 



Needles with a single fibro-vascular bundle; the umbo terminal on the apophysis; 

 needles 5 in a fascicle. Soft Pines. 



Cones slender, long peduncled, 6-8 inches long 1. P. monticola 



Cones short and thick, short peduncled or nearly sessile, 2-5 inches long. 

 Cone scales with thinner rounded ends, the umbos not forming protuberant 



beaked tips; cones larger 2. P. flexilis 



Cone scales with thicker ends, the umbos beak-like; cones smaller. 



3. P. albicaulis 



Needles with 2 fibro-vascular bundles; the umbo central on the apophysis; 



needles in 5 's or less than 5. Hard Pines. 

 Needles in 5's; umbos of cone scales with a minute prickle or unarmed; 



needles %-l inch long; bark smooth 4. P. Balfouriana 



Needles in 3's; umbos of cone scales with a long prickle; needles 5-10 inches 



long; bark rough and thick 5. P. ponderosa var. Jeffrey! 



Needles in 2's; umbos of cone scales with a short prickle; needles 1-3 inches 

 long; bark very smooth and thin 6. P. Murrayana 



1. Pinus monticola Don, in Lambert, Pinus, ed. 2, vol. 3, p. 27, 

 t. 87. 1837. 



Type locality. Not ascertained. 



Range. British Columbia to northwest Montana, south in the 

 Cascades through Oregon and northern California, continuing in the 

 Sierras to the Kings River region. 



Zone. Canadian. 



Specimens examined. Sierra Valley, Lemmon; Summit Valley, 

 Pringle, September 26, 1882 ; Angora Peak, Tahoe, 8,625 feet, Smiley, 

 37; caiion above Glen Alpine, 7,500 feet, Smiley, 357; near Glen 

 Alpine, W. A. Setchell, July, 1901; Lambert's Dome, Tuolumne 



