and pointed at the center.

* Native trees; leaves light glaucous-green. 1.

* Cultivated trees from Western America; leaves dark green.
(=A.=)

=A.= No tubercle on the backs of the leaves. 2.

=A.= Usually a tubercle on the back 3.

* Cultivated small trees and shrubs from Japan (called Retinospora) 4.

[Illustration: C. sphaeroidea.]

1. =Chamaecyparis sphaeroidea=, Spach. (WHITE CEDAR.) Leaves very small,
triangular, awl-shaped, regularly and closely appressed in 4 rows, of a
light glaucous-green color, often with a small gland on the back. Cones
very small, 1/3 in. in diameter, of about 6 scales, clustered. Tree 30
to 90 ft. high, wild in low grounds throughout; abundant in Middle
States. With reddish-white wood and slender, spreading and drooping
sprays; bark fibrous, shreddy; sometimes cultivated.

[Illustration: C. Nutkaensis.]

2. =Chamaecyparis Nutkaensis=, Lambert. (NOOTKA SOUND CYPRESS.) Leaves
only 1/8 in. long, sharp-pointed, and closely appressed, of a very
dark, rich green color; very slightly glaucous, without tubercles on the
back. Cones small, globular, solitary, with a fine, whitish bloom;
scales 4, rough and terminating in a sharp straight point. Tree 100 ft.
high in Alaska, and would make a fine cultivated tree for this region if
it could stand our hot, dry summers.

[Illustration: C. Lawsoniana.]

3. =Chamaecyparis Lawsoniana=, Park. (LAWSON'S CYPRESS.) Leaves small,
deep green, with a whitish margin when young, forming with the twigs
feathery-like, flat spray of a bluish-green color; leaves usually with a
gland on the back. Cones scarcely 1/4 in. in diameter, of 8 to 10 scales.
A magnificent tree in California, and where it is hardy (in rather moist
soil, New York and south) it forms one of our best cultivated
evergreens. The leading shoot when young is pendulous.

[Illustration: R. obtusa.]

4. =Chamaecyparis= (=Retinospora=) =obtusa=, Endl. (JAPANESE ARBOR-VITAE.)
Leaves scale-formed, obtuse, closely appressed and very persistent.
Cones of 8 or 10 hard, light brown, wedge-shaped scales. Beautiful small
trees or generally shrubs (in this country), of a score of named
varieties of many colors and forms of plant and foliage.

There are probably a number of species of Japanese and Chinese
Chamaecyparis (Retinospora), but till their size, hardiness, and origin
have been more fully determined,