T. gigantèa.
2. Thùya gigantèa, Nutt. (Giant Arbor-vitæ.) Leaves scale-shaped, somewhat 4-sided, closely overlapping, sharp-pointed, slightly tuberculate on the back; cones more or less clustered and nearly ½ in. long. A very large and graceful tree, 200 ft. high, with white, soft wood; from the Pacific coast; introduced but not very successfully grown in the Atlantic States.
T. dolabràta.
3. Thùya dolabràta, L. (Hatchet-leaved Arbor-vitæ.) Leaves large, sometimes ¼ in. long, very blunt, in 4 rows on the flattened spray. Cones quite small, ovate, sessile, with jagged edges; scales reflexed and wedge-form. A small conical tree with horizontal branches and drooping branchlets; which, because of its large leaves (for an Arbor-vitæ) and flexible branchlets, is quite unique and interesting. In shaded and moist places it has done quite well as far north as New York.
T. orientàlis.
4. Thùya orientàlis, L. (Eastern or Chinese Arbor-vitæ.) Leaves small, in 4 opposite rows, appressed, acute, on the numerous 2-edged branchlets. Cones large, roundish, with thick leathery scales having recurving, horn-like tips. Of this species there are as many varieties sold as of number one, and nearly the same varietal names are used; but it is not so good a species for general cultivation in this country.
Var. flagelliformis, Jacq. (Weeping Arbor-vitæ), has very slender, elongated, weeping branches, curving gracefully to the ground. It is a beautiful variety, often cultivated (a single stem is shown in the figure).
Genus 104. CHAMÆCÝPARIS. (The Cypresses.)