CONIFER. SILVA OF NORTH AMERICA. 119 
CUPRESSUS LAWSONIANA. 
Port Orford Cedar. Lawson’s Cypress. 
BRANCHLETS slender, compressed. Leaves conspicuously glandular. Staminate 
flowers bright red. Bark thick, deeply furrowed. 
Cupressus Lawsoniana, A. Murray, Edinburgh New Prodr. xvi. pt. ii. 464 (1868). — Gordon, Pinetum, ed. 2, 
Phil. Jour. n. ser. i. 292, t. 10 (1855); The Garden, vii. 
508, t. — Bot. Mag. xci. t. 5581. — Henkel & Hochstetter, 
Syn. Nadelh. 246. — (Nelson) Senilis, Pinacee, 72. — 
Hoopes, Evergreens, 342, £. 53. — Veitch, Man. Conif. 
231.— Eichler, Monatsh. Acad. Berl. 1881, £. 29, 30. — 
Lauche, Deutsche Dendr. ed. 2, 63. — Lawson, Pinetum 
Brit. ii. 191, t. 31, £. 1-13. — Schiibeler, Virid. Norveg. 
i. 374, — Masters, Jour. R. Hort. Soc. xiv. 205; Jour. 
Linn. Soc. xxxi. 353, £. 28. — Koehne, Deutsche Dendr. 51. 
85. — Engelmann, Brewer & Watson Bot. Cal. ii. 114. — 
Sargent, Forest Trees N. Am. 10th Census U. 8S. ix. 
178. — Wilkomm, Forst. Fl. ed. 2, 247. — Mayr, Wald. 
Nordam. 314, f. 12, t. 6, f. t. 8, £.— Lemmon, Rep. 
California State Board Forestry, iii. 177, t. 24 (Cone- 
Bearers of California); West-American Cone-Bearers, 
74. — Beissner, Handb. Nadelh. 70, £. 16, 17. — Hansen, 
Jour. R. Hort. Soc. xiv. 278 (Pinetum Danicum).— R. 
Hartig, Forstbot. Zeit. 1892, 21. 
Cupressus fragrans, Kellogg, Proc. Cal. Acad. i. 103 Cupressus Boursierii, Carritre, Traité Conif. ed. 2, 125 
(1856). (1867). 
Cupressus attenuata, Gordon, Pinetum, 57 (1858). Cupressus Nutkana, Torrey, Bot. Wilkes Explor. Exped. 
Chameecyparis Lawsonii, Parlatore, Ann. Mus. Stor. Nat. t. 16 (1874). 
Firenze, i. 175, t. 3, £. 22-25 (Stud. Organ. Conif.) (1864). ? Cupressus Balfouriana, Gordon, Pinetum, ed. 2, 79 
Chameecyparis Lawsoniana, Parlatore, De Cundolle (1879). 
A tree, often two hundred feet in height, with a tall trunk frequently twelve feet in diameter 
above its abruptly enlarged base and often free of branches for one hundred and fifty feet, small 
horizontal or pendulous branches which form a narrow spire-like head, and slender branchlets clothed 
with remote narrow flat spray frequently six or eight inches in length. The bark of the trunk, which 
is often ten inches in thickness at the base of old trees, is three or four inches thick on smaller stems ; 
it is dark reddish brown, with two distinct layers, the inner being from an eighth to a quarter of an 
inch in thickness, darker, more compact and firmer than the outer, which is divided into great broad- 
based rounded ridges separated on the surface into small thick closely appressed scales ; on young stems 
and on the branches the bark is thin, dark reddish brown and slightly scaly. The branchlets are 
slender, compressed during the first season, light green for two years, and then light reddish brown. 
The leaves on lateral branchlets are ovate, acute, conspicuously glandular on the back, closely appressed, 
usually not more than one sixteenth of an inch long, and bright green ; on leading shoots they are 
long-pointed and often spreading at the apex, from an eighth to nearly a quarter of an inch in length, 
and usually die, turn bright red-brown, and fall during the third year or occasionally remain another 
season on the branches; on seedling plants they are linear-lanceolate, thin and spreading, acute or 
rounded at the apex, from one quarter to one half of an inch in length, and bright green with obscure 
midribs. The flowers appear in early spring, the staminate with bright red connectives bearing usually 
two pollen-sacs, and the pistillate with dark ovate acute spreading scales. The fruit, which is 
clustered on the upper lateral branchlets and is usually produced in great profusion, ripens in September 
and October; it is globose, about a third of an inch in diameter, pale green and glaucous when fully 
grown, and red-brown and often covered with a bloom at maturity, with eight or ten rugose scales 
furnished with thin broadly ovate acute reflexed bosses. From two to four seeds are produced under 
each fertile scale; they are ovate, acute, slightly compressed, an eighth of an inch long, and light 
chestnut-brown, with thin broad wings. 
