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Rh Leaves, ¼ to ¾ inch long, oblong, rounded at the apex, which is entire, minutely notched or mucronate; lower surface with two narrow well-defined white stomatic bands. Buds reddish, ovoid, sharp-pointed; scales indistinctly keeled.

In addition to the preceding, two species of Tsuga, belonging to this section, occur in China. They are as yet imperfectly known. Tsuga chinensis, Masters, a native of the high mountains of Szechuan, is closely allied to Tsuga dwversifolia, and, like it, has pubescent young shoots. It differs in the cones, which are quite sessile, and have very lustrous scales. The leaves are described as being green beneath; but this is probably an inconstant character.

Tsuga yunnanensis, Masters, which was discovered by Pére Delavay in the mountains near Likiang in Yunnan, is unknown to me. Franchet considers it to be closely allied to T. Sieboldii.

A tree, occasionally attaining in America 150 feet in height, with a girth of 15 feet. Bark dark cinnamon in colour, deeply divided into rounded connected scaly ridges. Shoots brownish-grey, and densely pubescent. Branchlets in different planes, the shorter and lateral ones usually arising on the upper side of the longer and terminal ones, and disposed at right angles to them, giving a tufted appearance to the branch. Leaves radially arranged on the branchlets, not markedly different in size, # to 1 inch long, curved, linear; apex usually rounded and obtuse, rarely acute; upper surface convex and keeled towards the apex; lower surface rounded with a median groove; both surfaces with about eight lines of stomata, which are sparse and do not form conspicuous white bands; margin entire. Buds brownish, ovoid, acute at the apex, composed of a few closely imbricated, strongly keeled scales.

Cones sessile, about two inches long, oblong cylindrical, tapering at the apex and slightly narrowed at the base, composed of five series of scales, each series with