350 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



thin, scaly, light greyish-brown bark, not more than three or four 

 lines thick even on old trees ; but on the high bleak mountains of 

 the Snowy Range, on Pike's Peak, and on the heights of the 

 Coochetopa Pass, at an elevation of from 10,000 to 12,000 feet, it 

 becomes a straggling bush, frequently prostrate or almost creeping, 

 and thickly covered with cones. It, however, never descends to a 

 lower elevation than 9^000 feet. The wood is white, tough, and not 

 very resinous. 



It was first introduced in 1870 by Mr. Ciipps, of Tunbridge Wells 

 (G. Gordon, " The Pinetum," 1875). 

 Seems to be hardy in Denmark. 



P. Banksiana, Lamb. Pin. ed. 1, i. 7, t. 3 ; ed. 2, i. 7, 

 t. 3, and ed. 3, i. 9, t. 3 ; Pers. Syn. ii. 578 ; Desf. Hist. Arb. 

 ii. 611 ; Nouv. Duham. v. 234, t. 67, f. 3 ; Ait. Hort. Kew. 

 ed. 2, V. 315 ; Pursh, Fl. Am. Sept. ii. 642 ; Smith in Rees' Cycl. 

 xxviii. No. 4 ; Nutt. Gen. ii. 223, and Sylv. iii. 124, ed. 2, ii. 

 182 ; Spreng. Syst. ii. 886 ; Torr. Compend. Fl. N. States, 360 ; 

 Beck, Bot. 339 ; Eaton, Manual, ed. 6, 265 ; Loud. Arbor, iv. 2190, 

 f. 2064-2067 ; Forb. Pmet. Wob. 13, t. 3 ; Hook. Fl. Bor. Am. ii.' 

 161 ; Eaton and Wright, Bot. 358 ; Ant. Gonif. 8, t. 4, f. 2 ; 

 Lindl. in Penn. Cycl. xvii. 171 ; Link in Linnsea, xv. 491 ; Spach, 

 Hist. Veg. xi. 379 ; Endl. Syn. Conif. 177 ; Knight, Syn. Conif. 26 ; 

 Lindl. and Gord. in Journ. Hort. Soc. Lond. v. 218 (excl. syn. con- 

 torta) ; Parry in Owen's Rep. 618 ; Carr. Tr. Gen. Conif. 381, and ed. 2, 

 485 ; Gord. Pinet. 163, and ed. 2, 230 ; Richardson, Arctic Exped. 441 ; 

 Cooper in Smithsonian Rep. 1858, 257 ; Hook, fil. in Linn. Trans, 

 xxiii. 301 ; Wood, CI. Book, 661 ; Henk. and Hochst. Nadelh. 44 ; 

 Nelson, Pinac. 104 ; Gray, Manual N. States, ed. 5, 470 ; Hoopes, 

 Evergreens, 78 ; Yasey, Cat. Forest Trees, 29 ; Macoun in Geolog. 

 Rep. Canada, 1875-76, 211 ; Engelm. in Trans. St. Louis Acad. iv. 

 184 ; Sears in Bull. Essex Inst. xiii. 186 ; Bell in Geolog. Rep. 

 Canada, 1879-80, 46; Yeitch, Man. Conif. 158; Beissn. Nadelh. 218. 

 P. canadensis follis curtis, &c. Duham. Arb. ii. 126. P. silvestris 

 divaricata, Ait. Hort. Kew. ed. 1, 3, t. 366. P. hudsonica, Lam. 

 Diet. Encycl. v. 339. P. rupestrls, Michx. Arb. Forest, i. 49, t. 2. 



Habitat. — Bay of Chaleurs, New Brunswick, to the southern 

 shores of Hudson's Bay ; north-west to the Great Bear Lake, the valley 

 of the Mackenzie River, and the eastern slope of the Rocky Mountains 

 between the fifty-second and sixty-fifth degrees of north latitude; south 

 to Northern Maine, Ferrisburg, Vermont (R. E. Robinson), the 

 southern shores of Lake Michigan, and Central Minnesota. 



A small tree, 20 to 70 feet in height, with a trunk rarely ex- 

 ceeding 2h feet in diameter ; barren, sandy soil, or less commonly 

 in rich loam ; most common north of the boundary of the United 

 States, and reaching its greatest development in the region north of 

 Lake Superior, here often forming considerable forests ; toward its 



