PINUS 



PINUS 



2639 



13. cembroides, Zucc. (P. osteosperma, Engelm.). 

 Small tree, usually not over 20 ft., with stout spreading 

 branches forming a round-topped head: branchlets 

 dark orange, pubescent at first: Ivs. usually 3, some- 

 times 2, slender, dark green, with stomata on all 3 

 faces, much incurved, 1-2 in. long: cone subglobose, 

 1-2 in. broad; apophysis pyramidal, strongly keeled, 

 lustrous brown, with broad obtuse umbo; seeds oblong- 

 obovate, 3^-^in. long, dark brown, with very narrow 

 wing. Ariz, to Low. Calif, and N. Mex. S.S. 11:550. 

 G.F. 4:353. F.S. 4, p. 3256. A slow-growing densely 

 branched pine; tender. By some authors the preced- 

 ing and the two following species are referred to this 

 species as simple variations in the number of Ivs. 



14. edulis, Engelm. (Carydpitys edulis, Small). 

 NUT PINE. Fig. 2966. Small tree, 10-20 or occasion- 

 ally to 40 ft., with horizontal branches, bushy when 

 young, with low, round-topped head in old age: branch- 

 lets light yellowish brown, puberulous at first: Ivs. 2^-3, 

 rigid, dark green, %-lK in. long: cones almost sessile, 

 broadly ovate, greenish yellow, lustrous, about 1H 

 in. long; apophysis pyramidal, strongly keeled; umbo 

 with minute recurved tip; seed %in. long, with narrow 

 wing remaining attached to the scale. Colo, to N. Mex. 

 and Texas. S.S. 11:552. F.E. 29:205 Hardy as 

 far north as Mass., forming a slow-growing and com- 

 pact bush. The seeds are an important article of food 

 among the Indians. Var. albo-variegata, Hort., has 

 white Ivs. mixed with the green ones. 



15. monophylla, Torr. & Frem. (P. Fremontiana, 

 Endl.). Tree, 15-20, occasionally to 50 ft., similar to 

 the preceding: branchlets light orange, glabrous: Ivs. 

 usually solitary, sometimes 2, terete, rigid, spinescent, 

 glaucous green, %-lH in. long: cones broadly ovate, 

 light brown, 1^4-2 in. long; apophysis depressed-pyram- 

 idal, ridged, the flattened umbo with a minute in- 

 curved tip; seed Y^- long. Calif, to Colo, and Ariz. 

 S.S. 11 :551. G.C. II. 20:44; 26:137.^Of slow growth, 

 hardy as far north as Mass. The solitary If. has been 

 believed to consist of 2 connate ones, but this is cer- 

 tainly not the case, as the solitary fibre-vascular bun- 

 dle plainly shows. 



2966. Pinus edulis. 

 CXH) 



Group 5. GERARDIAN^E. 



16. Bungeana, Zucc. LACE-BARK PINE. WHITE- 

 BARK PINE. Tree, to 80 or 100 ft., with long and slen- 

 der branches: bark flaky, light gray: young branches 

 grayish green, glabrous: Ivs. rigid, acute, light green, 

 2-4 in. long: cones almost sessile, conic-ovate, light 

 yellowish brown, 2-3 in. long; apophysis much broader 

 than high, ridged, with a triangular pointed and 

 recurved umbo; seed dark brown, with narrow wing, 

 M-Min. long. N. W. China. B.M. 8240. G.C. II. 



18:9. Hardy slow-growing tree of bushy habit hi 

 cult, and with rather sparse light green foliage. 



Group 6. BALFOURIANJE. 



17. Balfouriana, Jeffrey. FOXTAIL PINE. Tree, to 

 40, occasionally 90 ft., narrow-pyramidal when young, 

 irregular and open in old age: branchlets dark brown, 



2967. Scotch pine. Pinus sylvestris 



. No. 25. 



puberulous at first: Ivs. crowded, incurved and pressed 

 against the branches, rigid, acute, dark green on the 

 back, with conspicuous white lines inside, 1-1 3^ in. 

 long, remaining for 10-12 years on the branches: cones 

 pendulous, subcylindric, dark purplish brown, 3M~5 in. 

 long; apophysis flattened, the concave oblong umbo 

 with minute incurved prickle; seed H m - long. Calif. 

 S.S. 11:553. Not hardy N. 



18. aristata, Engelm. (P. Balfouriana var. aristdta, 

 Engelm.). HICKORY PINE. FOXTAIL PINE. Bushy tree, 

 occasionally to 50 ft., sometimes a semi-prostrate 

 shrub: branchlets light orange and almost glabrous: Ivs. 

 stout or slender, dark green, 1-1 ^ in. long, with white 

 lines inside: cones cylindric-ovate, 3-3^ in. long; 

 apophysis elevated; umbo with a slender incurved 

 spine to Min. long; seed ]^n. long. Calif, to Utah and 

 Ariz. S.S. 11:554. G.C. III. 20:719. M.D. 1904, p. 

 49 (pi. 5). Hardy as far north as Mass.; in cult, 

 usually a handsome low, bushy shrub of distinct habit: 

 Ivs. often sprinkled with resinous dots. 



Section III. PARAPINASTER. 

 Group 7. PINILE. 



19. Rnea, Linn. STONE PINE. Tree, to 80 ft., with 

 long, horizontally spreading branches forming in older 

 trees a broad, flat-topped head: branchlets pale brown: 

 buds with revolute scales, oblong-ovate, not resinous: 

 Ivs. rigid, acute, bright green, 5-8 in. long: cones broadly 

 ovate, chestnut-brown, 4-5 H in- l n g> apophysis 

 depressed-pyramidal, radiately ridged; umbo flat, 

 obtuse; seed reddish brown, %in. long, edible. S. Eu. 

 G.C. II. 20:45; III. 4:604, 605. Gn. 27, pp. 245-7; 

 50, p. 460; 76, p. 648. H.W. 1, pp. 170, 171. F.S.R. 

 2, p. 274. J.H. III. 68:447. Tree of picturesque habit, 

 with a trunk usually destitute of branches for a con- 

 siderable height and with a wide-spreading parasol- 

 like head. Not hardy N.; in warmer regions often 

 cult, for its edible seeds. 



Group 8. LONGIPOLLB. 



20. canariensis, C. Smith. Tree, to 80 ft., with slender 

 branches forming a broad, round-topped head: branch- 

 lets yellowish: Ivs. slender, spreading and pendulous, 

 light green and lustrous, 9-12 in. long, with medial 

 resin-ducts: cones cylindric-ovate, 4-8 in. long; apophy- 

 sis low-pyramidal, irregularly 4-sided, light b r own and 



