2642 



PINUS 



PINUS 



is especially very handsome as a young plant, with its 

 long, dense Ivs. 



28. Thunbergii, Parl. (P. Massonidna, Sieb. & Zucc., 

 not Lamb.). JAPANESE BLACK PINE. Tree, to 100 ft., 

 or occasionally 120 ft., with spreading, often somewhat 

 pendulous branches, forming a broad, pyramidal head: 



2973. Cone of Pinus palustris (XJi)- No. 34. 



branchlets orange-yellow, the winter buds oblong, 

 grayish or silvery white: Ivs. stiff, sharply pointed, 

 bright green, 3-4H in. long: cones short-stalked, conic- 

 ovate, grayish brown, 2-3 in. long; apophysis flattened, 

 with small, depressed umbo, obtuse or with a minute 



Erickle; seed grayish brown, ^in. long. Japan. G.C. 

 1.23:345. S.Z.2:113. S.I.F. 1:1. Handsome tree 

 and hardy N. Several horticultural varieties have been 

 intro. from Japan: one of the most distinct is var. 

 Oculus-dracdnis, Mayr, each If. being marked with 2 

 yellow bands and therefore the tufts of the Ivs. at the 

 end of the branches, if seen from above, show alternate 

 yellow and green rings, hence the name Oadus-draconis 

 (dragon-eye). Var. variegate, Hort., has the Ivs. partly 

 yellow or occasionally wholly 

 yellowish white. There are also 

 similar forms in P. densiflora, 

 which may be distinguished by 

 the brown color of the winter 

 buds. 



29. sinensis, Lamb. (P. leucos- 

 perma,' Maxim. P. funebris, 

 Komar. P. Henryi, Mast. P. 

 Wilsonii, Shaw. P. tabiMformis, 

 Carr.). Tree, to 70 ft.: bark of 

 trunk dark gray, fissured, red 

 on the limbs: branchlets pale 

 orange-yellow or pale grayish 

 yellow, slightly bloomy while 

 young: winter buds oblong, light 

 brown, lustrous, slightly or not 

 resinous: Ivs. 2^3, oftener 2, stiff, 

 glaucescent, with rough margins, 

 2-4 in. long: cones subsessile, 

 ovoid, l l A-2^i in. long, persist- 

 ent for several years, pale yellow- 

 brown; apophysis rhombic, 

 prominently keeled, with an ob- 

 tuse or mucronate umbo; seeds 

 brown, mottled or whitish, over 

 J^in. long, with the wing %in. 

 long. Cent, and W. China. Var. 

 densata, Shaw (P. densdta, Mast. 

 P. prdminens, Mast.). Lvs. 3-5 

 in. long, stiff: cones ovoid, 2-2^ 

 in. long, oblique, with their pos- 

 terior apophysis tumid and 

 prominent. Var. yunnanensis, 

 Shaw (P. yunnanensis, Franch.). 

 Lvs. oftener 3, slender, 4-8 in. 

 long: cones 2^-3^4 in. long; 

 apophysis flat; umbo small; seed 

 with wing nearly 1 in. long. S.W. 

 China. G.C. III. 38:226. 



2975. Pinus caribasa 

 No. 35. 



2974. 



Leaf-bundle of 



Pinus palustris. 



No. 34. 



Group 10. AUSTRALES. 



30. ponderdsa, Douglas (P. Benthamiana, Hartw.). 

 YELLOW PINE. BULL PINE. Fig. 2970. Tree, to 150, 

 occasionally to 230 ft., with stout spreading and often 

 pendulous branches usually ascending at the ends and 

 forming a narrow, spire-like 

 head : branchlets orange-brown, 

 fragrant when broken: winter 

 buds oblong-ovate or ovate, 

 resinous: Ivs. acute, dark green, 

 5-11 in. long: cones almost 

 sessile, often in clusters, ovate- 

 oblong, light reddish or yel- 

 lowish brown and lustrous, 3-6 

 in. long; apophysis depressed- 

 pyramidal or flattened, with a 

 broadly triangular umbo ter- 

 minated by a stout, usually 

 recurved prickle; lower scales 

 with more elongated apex; seed 

 Min. long. Brit. Col. to Mex., 

 east to Neb. and Texas. S.S. 

 11:560,561. G.F. 8:395. G.C. 

 III. 8:557, 561, 569. F.S.R. 3, 

 p. 99. M.D.G. 1905:126. 

 One of the tallest and most im- 

 portant pines of the western 

 states. Hardy as far north as 

 N. Y., and in sheltered positions 

 to Mass. Var. pendula, H. W. 

 Sarg., has drooping branches. 

 Var. scopul&rum, Engelm. (P. 

 scopulbrum, Lemm.), is a geo- 

 graphical variety, smaller in 

 every part; usually to 75 ft. 

 high: Ivs. 5-7 in. long, some- 

 times in 2's: cones smaller, ovate. S. D. to Mex. and 

 Texas. S.S. 11:564. G.C. II. 9:797. M.D. 1912, p. 

 364. Somewhat hardier than the type. P. Mdlletii, 

 Mott., is probably a form of this species with more 

 ascending branches forming a rather narrow pyramidal 

 head. R.H. 1913, p. 265. Fig. 2970 is adapted from 

 Pacific R. R. Report. 



31. Jeffreyi, Balfour (P. ponder dsa var. Jeffreyi, 

 Vasey). JEFFREY'S PINE. Tree, to 120 or occasionally 

 to 180 ft., with short spreading or often pendulous 

 branches, the uppermost ascending, forming an open 

 pyramidal and sometimes narrow spire-like head : young 

 branches glaucous, fragrant when broken : winter buds 

 oblong-ovate, not resinous: Ivs. stout, acute, pale bluish 

 green, 5-8 in. long: cones conic-ovate, light brown, 6-12 

 in. long; apophysis depressed, keeled; umbo elongated 

 into a slender recurved spine; seed about Hin. long. 

 Ore. to Calif. S.S. 11:562, 563. G.C. 11.22:813; III. 

 5:361,369. G.F. 5:185. B.M. 8257. G.W. 2, p. 199. 

 Distinct and ornamental pine of symmetrical habit 

 when young, hardy as far north as Mass. Among the 

 hardier species this pine has 



the longest Ivs. 



32. echinata, Mill. (P. 

 mltis, Michx.). SPRUCE 

 PINE. YELLOW PINE. Tree, 

 to 100 or 120 ft., with 

 slender often pendulous 

 branches in regular whorls: 

 winter buds oblong-ovate, 

 brown: Ivs. slender, acute, 

 dark bluish green, some- 

 times in 3's, 3-5 in. long: 

 cones short - stalked or 

 almost sessile, conic-oblong, 

 dull brown, 1^-2 in. long; 

 apophysis flattened; umbo 

 little elevated, with short 



straight or curved prickle; 2976. Pinus caribaea. (X?i) 



