57. PINUS BANKSIANA
- 1803 P. Banksiana Lambert, Gen. Pin. i. 7. t. 3.
- 1804 P. hudsonia Poiret in Lamarck, Encycl. Méth. v. 339.
- 1810 P. rupestris Michaux f. Hist. Arbr. Am. i. 49, t. 2.
- 1811 P. divaricata Dumont de Courset, Bot. Cult. ed. 2, vi. 457.
Spring-shoots multinodal. Leaves binate, from 2 to 4 cm. long; resin-ducts medial, hypoderm biform. Conelets minutely mucronate. Cones from 3 to 5 cm. long, erect, ovate-conic, oblique, much curved or variously warped from the irregular development of the scales, serotinous; apophyses lustrous tawny yellow, concave, flat or convex, the umbo small and unarmed.
The most northern American Pine, growing near the Arctic Circle in the valley of the Mackenzie River, whence it ranges southeasterly to central Minnesota and the south shore of Lake Michigan, and easterly through the Dominion of Canada to northern Vermont, southern Maine, and Nova Scotia. In the northern part of its range it is the only Pine, but further south it is associated with P. strobus and P. resinosa. It is easily identified by its curious curved or deformed cones.
Fig. 301, Cones. Fig. 302, Biserial cones of the same year. Fig. 303, Leaf-fascicle and magnified leaf-section. Fig. 304, Habit of the tree.
58. PINUS CONTORTA
- 1833 P. inops Bongard in Mém. Acad. Sci. St. Pétersb. ii. 163, (not Aiton).
- 1838 P. contorta Douglas ex Loudon, Arb. Brit. iv. 2292, f. 2211.
- 1853 P. Murrayana Balfour in Bot. Exp. Oregon, 2, f.
- 1854 P. Boursieri Carrière in Rev. Hort. 225, ff. 16, 17.
- 1868 P. Bolanderi Parlatore in DC. Prodr. xvi-2, 379.
- 1869 P. tamrac Murray in Gard. Chron. 191, ff. 1-9.
- 1898 P. tenuis Lemmon in Erythea, vi. 77.