2640 



PINUS 



PINUS 



glossy, with obtuse umbo; seed J^in. long. Canary Isls. 

 G.C. III. 3:721. Handsome pine cult, in Calif., where 

 it does very well and grows faster than the native P. 

 radiata, even in very rocky and dry locations; in colder 

 regions grown sometimes in the greenhouse. 



21. longifdlia, Roxbg. (P. Roxburghii, Sarg.). Tree, 

 to 100 ft. or more, with round -topped symmetrical 



2968. Mugho pine. Pinus montana var. Mughus. No. 26. 



head: branchlets light yellow-brown: whiter buds 

 oblong, light chestnut-brown, not resinous: Ivs. slen- 

 der, pendulous, light green, 8-12 in. long, with external 

 resin-ducts: cones short-stalked, conic-ovate, 4-7 in. 

 long; apophysis elongated-pyramidal, compressed, more 

 or less recurved; umbo obtuse; seed %-\ in. long. 

 Himalayas. Important forest tree in its native coun- 

 try. Not hardy N., but cult, in Calif. Very decorative 

 as a young plant, with its long drooping light green 

 foliage. 



Section IV. PINASTER. 

 Group 9. LARICIONBS. 



22. densifldra, Sieb. & Zucc. JAPANESE RED PINE. 

 Tree, to 100 ft., with spreading branches forming an 

 irregular, rather broad head: branchlets orange-yellow, 

 bloomy: buds oblong-ovate, chestnut-brown: Ivs. 

 slender, acute, bright bluish green, 2*^-5 in. long: 

 cones short-stalked, conic-ovate to oblong, grayish 

 brown, somewhat oblique at the base, about 2 in. long; 

 apophysis flattened and slightly ridged, those near 

 the base sometimes elongated; umbo small, with a 

 short prickle or obtuse; seed grayish yellow, J^in. long. 

 Japan. S.Z. 2 : 112. S.I.F. 1 : 1. Gn.M. 2 :22. Orna- 

 mental hardy tree, rapidly growing when young, often 

 very picturesque when older. Many garden forms are 

 cult, in Japan, several of them with variegated Ivs. 

 The best are perhaps var. umbraculif era, Mayr, a low 

 form with horizontally spreading branches forming a 

 flat head; var. pendula, Mayr, with pendulous branches; 

 var. a&rea, Mayr, with yellow foliage; var. albo-termi- 

 nata, Mayr, with the tips of the Ivs. yellowish white, 

 and var. Oculus-draconis, Mayr, like var. variegata, 

 Mayr, similar to the varieties, of the same name under 

 P. Thunbergii. (No. 28.) 



23. Massoniana, Lamb. Tree, to 80 ft., with slender, 

 spreading branches: branchlets yellowish brown: Ivs. 

 very slender and thin, light green, 5-8 in. long: cones 

 oblong-ovate or ovate, dull brown, 2-3 in. long; 

 apophysis flattened,' slightly keeled, with a small, flat, 

 unarmed umbo; seed j^in. long. China. Not hardy 

 N. and rarely cult. Often confounded with P. sinensis 

 and P. densiflora. 



24. resinSsa, Ait. RED PINE. NORWAY PINE. Tree, 

 to 70, occasionally to 150 ft., with stout spreading and 

 sometimes pendulous branches forming a broad pyram- 

 idal head when young and an open round-topped one 

 in old age: branchlets orange-color: buds ovate, acumi- 

 nate, light brown, resinous: Ivs. slender and flexible, 

 acute, dark green and lustrous, 4-6 in. long: cones sub- 

 sessile, conic-ovate, light brown, l l ArZ l A in. long; 

 apophysis flattened, conspicuously keeled, obtuse, with 

 small dark unarmed umbo; seeds dark brown, }/gin. 



long. Newfoundland to Man., south to Pa. and Minn. 

 S.S. 11:550, 551. A.G. 12:645. C.L.A. 11:310. One 

 of the most ornamental pines for northern parks, quite 

 hardy and of vigorous growth. Lumber tree. 



25. sylvestris, Linn. SCOTCH or SCOTS PINE. Fig. 

 2967. Tree, to 70, or occasionally 120 ft., with spread- 

 ing, often somewhat pendulous branches, pyramidal 

 when young, with broad and round-topped often pic- 

 turesque head in old age: branchlets dull grayish yel- 

 low: winter-buds oblong ovate, brown, resinous: Ivs. 

 rigid, acute, twisted, bluish green, l}^-3 in. long: cones 

 short-stalked, conic-oblong, grayish or reddish brown, 

 1/4-2H in. long; apophysis little thickened, slightly 

 keeled, only those near the base elongated; umbo small, 

 obtuse; seed dark gray, K m - long- Eu. to W. and N. 

 Asia. Gn. 36, p. 167; 38, p. 455; 49, p. 296. H.W. 

 1:4, pp. 121-6. F.E. 29:157. G.C. III. 34:298. F.S.R. 

 1, p. 16. One of the most important timber trees of 

 Eu. It is quite hardy, but has little to recommend it as 

 an ornamental tree. Several geographical and garden 

 forms have been distinguished. Var. argentea, Stev. 

 Foliage light bluish green, with silvery hue. Var. aurea, 

 Beissn., with the young Ivs. golden yellow. F.E. 13 : 972 

 (pi. 14). Var. nivea, Schwerin. Lvs. a dirty greenish 

 white. Var. Beissneriana, Schwerin. Lvs. green at first, 

 changing to golden yellow in summer. Var. colum- 

 naris compacta, Bailly. Slow-growing, dense, columnar 

 form. R.H. 1889, p. 393. Var. fastigteta, Carr. (var. 

 pyramiddlis, Hort.). Of pyramidal habit. Var. virgata, 

 Casp. Sparingly branched form with long flagellate 

 branches. H.W. 1, p. 126. Var. crispata, Schwerin. Lvs. 

 curved in different directions, having a crisp appearance. 

 Var. pendula, Beissn. With pendulous branches. Var. 

 pumila, Beissn. Dwarf globose bush. Besides these 

 varieties a number of geographical races have been 

 distinguished which differ chiefly in habit, growth, and 

 hardiness and are more of silvicultural than of horti- 

 cultural interest. The best known are var. rigensis, 



2969. Austrian pine. Pinus nigra var. austriaca ( X 1 A) No. 27. 



Loud., with a straight tall st,; var. lapponica, Fries 

 (P. lappdnica, Mayr). A pyramidal form of slow 

 growth : Ivs. broader and shorter, remaining green on the 

 branches for 4-7 years: cones more yellowish. N. Eu. 

 Var. engadinensis, Heer. A slow-growing pyramidal 

 form with thick and rigid Ivs. 1-13^ in. long and gray- 

 ish green. Tyrol. 



