266 THE CULTIVATED EVERGREENS 



E. Cone-scales suborbicular: leaves emarginate, with in- 

 conspicuous bands beneath 3. T. chinensis 



EE. Cone-scales oblong-oval: leaves not or indistinctly 



emarginate, with conspicuous white bands 4. T. caroliniana 



BB. Margin of leaves finely denticulate, at least toward the apex; 

 apex of leaves obtuse or acutish. 

 c. Under side of leaves with narrow well-defined bands about as 

 broad as the green margin: cone peduncled, with glabrous 



almost orbicular scales 5. T. canadensis 



cc. Under side of leaves with broad not clearly defined bands 

 much broader than the green margin: cone sessile, Avith 



oval slightly puberulous scales 6. T. hcierophylla 



AA. Leaves stomatiferous on both sides, flat or convex above, spirally 



arranged: cones 2-3 inches long (Hesperopeuce, Engelm.). . . .7. T. Mertensiana 



1. T. Sieboldii, Carr. (T. Araragi, Koehne). Siebold H. Tree attaining 

 100 feet, with spreading slender branches; winter-buds ovoid, acutish, with 

 glabrous ciliate scales; branchlets pale yellowish-brown, somewhat glossy, 

 glabrous, with reddish leaf -cushions : leaves linear, usually broadest at the 

 apex, emarginate, grooved and glossy dark green above, with narrow white 

 bands beneath, }4-% inch long: cone ovoid, 1-lM inches long, the peduncle 

 exceeding the bud-scales; scales orbicular; bracts bifid. Japan. — Introduced 

 in 1850 by Siebold to Europe. Hardy as far north as Massachusetts in 

 sheltered positions. 



2. T. diversifolia, Mast. {Abies diversifolia, Maxim. T. Sieboldii nana, 

 Carr.). Japanese H. Tree, very similar to the preceding, but smaller and 

 chiefly distinguished by the reddish-brown pubescent branches; winter-buds 

 obovoid, flattened, minutely pubescent and ciliate: leaves linear, emarginate 

 or obtuse, shorter and narrower, broadest at the middle or toward the base, 

 ■|-f inch long: cone smaller, H-^<4 inch long; peduncle not exceeding the 

 bud-scales; bracts truncate, crenulate, not or slightly bifid; cone-scales 

 orbicular-ovate, lustrous, with slightly bevelled margin. Japan. — Introduced 

 in 1861 by J. G. Veitch to Great Britain. Hardy as far north as Massachusetts. 

 A graceful and handsome species growing well in the Eastern States. 



3. T. chinensis, Pritz. Chinese H. Tree to 150 feet tall; winter-buds 

 ovoid, obtuse, glabrous; branchlets yellowish, later pale yellowish-gray, 

 hairy only in the grooves : leaves linear, emarginate, 3^-1 inch long, lustrous 

 dark green above, beneath with broad whitish bands becoming inconspicuous: 

 cones ovoid, |-1 inch long; scales suborbicular, lustrous, yellowish-brown, 

 with slightly bevelled margin. Western China. — Introduced by E. H. Wilson 

 in 1901 to Great Britain and in 1908 to the Arnold Arboretum. Hardy in 

 sheltered positions as far north as Massachusetts. A handsome species 

 promising well in suitable localities. 



The closely related T. yunnanensis, Mast., Yunnan H., differs in the more 

 densely pubescent branchlets, shorter and narrower, obtuse, not emarginate 



