241 



Abies concolor Lowlana Lemmon. W 

 Am coneb ed 3, 64 (1895). 



Lindley & Gordon, London hort aoc J 

 6:210 (1850). 



Brandegee, Fl Colo 227, 231. 



Engelmann, bot Cal 2:118. 



Abies Lowiana Murr, fide Engelm. 

 PSEUDOTSUGA TAXIFOLIA Britton. 



Douglas spruce, commercially known as 

 Oregon pine, Douglas fir, or red or yellow 

 fir. Large and valuable trees, forming the 

 larger part of the great forests about Puget 

 Sound southward, 300 to 400 ft high. 10-12 

 in diain: cones narrow, 2-3 V4' long, the 

 feather-like bracts protruding Vfe-94'. 



Pseudotsuera Douglasii Carriere, 1855. 



Pinus Taxifolia Lambert, 1803. 



Genu. PINUS Tournefort. 



Evergreen trees with 2 kinds of lys, 

 the primary ones linear or scale-liKfc, 

 decid; secondary ones forming the or- 

 dmary foliage narrowly linear arising 

 from the ax of the former in fascicles 

 of 2-5, or solitary; subtended by the 

 bud scales, some of which are united to 

 form a sheath: stam cones borne at the 

 bases of the shoots of the season, clus- 

 ters of sta spirally arranged each in 

 the axil of a minute scale; fll very short; 

 aftth 2-celjed, longitudinally dehiscent: 

 ovule-bearing cones solitary or clustered, 

 borne on the twigs of the preceding 

 year, composed of num imbricated min- 

 ute bracts, each with an ovule-bearing 

 scale in its axil, ripening into a large 

 cone, which matures the following au- 

 tumn, its scales elongating and becom- 

 ing woody: sds 2 on the base of each 

 scale, winged above, the testa crusta- 



842 



Engelmann, hot Cal 2:127. 



Don, Linn tr 17:440. 



Pinus macrocarpa Lindl, bot reg 26 

 misc 61. 

 PINUS gT.lITXT.I8 James. 



A middle-sized tree With furrowed 

 gray bark; Ivs 5, 8-6 cm long, thick and 

 rigfd; staminate cones oval, 12-14 mm 

 long, inv bracts 8-9; anth tipped by a 

 spur; fr'ing cones oval to subcylindric, 

 8-16 cm long, light brown, scales round- 

 ed or pointed at the apx} sdS oval, 

 compressed, 8-12 mm long; Wing mih- 

 ute, scarcely exceeding 1 mm in Width, 

 usually remaining attached to the scale. 

 Summits of San Qorgonio; San Jacinto 

 and Santa Rosa mts. 



- 

 Hall, \j o 3. Limber pine. 



parry, bot obs Wyo 5, 6, 10, 11, 19, 



Brandegee Fl Colo 227, 231. 



Engelmann, bot Cal 2:124. 



James, Long's Exp 2:27, 85. 

 ptaftrg MOVOPMYUJA Torrey & Fre* 



m0 nt 



Nut plne . A sm tree> 20-25 hi. with 

 irr spreading branches and pale fissured 

 or flaky bark: lvs rigid> spiny tipped, 

 solitary and terete or rarely in pairs 

 ftn( j semiterete 1U-2U' lontf the 

 fheaths Ts" long: stam* fls oval wUh 

 6 involucral bracts; anth terminating in 

 a knob or a few teeth: cones 1^-2%' 

 lon> * nearly as thick- sds oval 6-10" 

 } n |; tmck-shmied'Tish brown tnd mot- 

 tled . cotyledons f-10. Baja' 



Pi ' nus Vremontiana Endl, Conif 183, 

 j n part 



Fremont's R 319 t 4. 



Watson, bot Cal 2:124. Nev; Ut; Af. 



Abrams, Fl LA 3. "Frequent on th<* 



!i - Erythea 2:7; - Mt 



in circles, strongly declined, narrow and 

 pointed, 3-7' long, remaining on the 

 trees and unopened for an indefinite 

 number of years. The outer scales with 

 conical, quadrangular tubercles, ter- 

 minated by a very short, deltoid, firm 

 prickle: lvs in 3's, 8-6' long. Often 

 called knob-cone pine**First detected 



"" "' 



. 



.\ sm , . .. 



Wlt h a round top: lvs 8- ma sheath, 

 1%-lH long : maU s oval, with 4 Iny- 

 bracts in the axil of broadly oval acutfl 



bi : a ^ ts = c ^ n ^ ^ bg ^Sl e ' t*" 2 * thlc1 ?' 

 with strongly elevated knobs: sds oval, 



6-8" long with a thin light-brown mot- 

 ell c 



tle < shel 



Abrams, Fl LA 6. "Extending in a 



m.dd.e-si^ed 



Aso 2, 34:332. 



pinyone or nut pine. Baja m t.l 



mt ' 



clusters of 3, stiff and erect. 15-25 cm 

 long, dark bl-g; staminate cones cylln- 

 dric. 35-40 mm long, With 8-10 involuc- 

 ral bracts: fr'lng cones long-oval, point- 

 ed. 25-35 cm long, 10-12 cm thick, y'ish- 

 brown, persistent; scales with a stout 

 elongated umbo armed with thick in- 

 curved spines; sds oval, bk, 12-16 mm 

 long; wing 20-30 mm long. Cuyamaca! 

 Jac! SBar mts: 4500-TOOO a alt. Baja! 



Abrams, Fl LA 5. 



Hall, U 53. 



,. ,, - , 

 quadrifolia Parl. 



MUB3AYAKA Orey Com. 

 Murray pine or Tamarack pine. Be- 

 coming a rather large tree. lo-40 m hi; 

 bark rather finely furrowed, grayish- 

 brown; lvs 2, 25-7o mm long, very stout 

 and rigid; sheaths 8-12 mm long when 

 young; stam cones with <5-8 inv-bracts, 

 cylindric, 10-15 mm long; fr'ing cones 

 clustered or in pairs, oval or snbcy'in- 

 dric, oblique, '--It cm long; scaie^ a/uie4 



