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



Range. — Central Sierra Nevada. 



Zone. — Canadian. 



Specimen examined. — ^Webber LsLke, Lemmon, September, 1886, 

 referred doubtfully as the velum appears to be complete. 



The basis for /. Bolamderi 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 

 /. Bolanderi and /. pygmaea. 



6. PINACEAE (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. PINUS 



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 pedunclgd 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 exa/mined. — 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 



