1. TORREYA ARN.
Tumion Raf.
Glabrous fœtid or pungent aromatic trees, with fissured bark and verticillate or opposite spreading or drooping branches. Leaves thin, long-pointed, abruptly contracted at base, dark green, lustrous and slightly rounded above, thickened and revolute on the margins, with pale bands of stomata on each side of the midvein on the lower surface. Flowers diœcious; the male crowded in the axils of adjacent leaves, on shoots of the previous year, oval or oblong, composed of 6 or 8 close whorls each of 4 stamens, subverticillately arranged on a slender axis; filaments stout and expanded above into 4 globose yellow pollen-sacs united into a half ring, their connectives produced above the cells; the female on shoots of the year less numerous and scattered, sessile, the ovule surrounded by and finally inclosed in an ovoid urn-shaped fleshy sac, and becoming at the end of the second season an oblong-ovate yellow-brown seed, rounded and apiculate at apex, acute and marked at base by the large dark hilum; seed-coat thick and woody, its inner layer folded into the thick white albumen, surrounded and finally inclosed in the thick green or purple enlarged disk of the flower composed of thin flat easily separable fibers, splitting longitudinally when ripe into two parts and separating from the basal scales persistent on the short stout stalk of the seed.
Torreya is now confined to Florida and Georgia, western California, Japan, the island of Quelpart, and central and northern China. Four species are recognized. Of the exotic species the Japanese Torreya nucifera S. & Z. is occasionally cultivated in the eastern states.
The genus is named in honor of Dr. John Torrey, the distinguished American botanist.
CONSPECTUS OF THE NORTH AMERICAN SPECIES.
Leaves slightly rounded on the back, pale below; leaves, branches, and wood fœtid; branchlets gray or yellowish green.1. [T. taxifolia] (C). Leaves nearly flat, green below; leaves, branches and wood pungent-aromatic; branchlets reddish brown.2. [T. californica] (G).
1. [Torreya taxifolia] Arn. Stinking Cedar. Torreya.
Tumion taxifolium Greene.
Leaves slightly falcate, 1½′ long, about ⅛′ wide, somewhat rounded, dark green and lustrous above, paler and marked below with broad bands of stomata. Flowers appearing in March and April; male with pale yellow anthers; female broadly ovoid, with a dark purple fleshy covering to the ovule, ⅛′ long, and inclosed at the base by broad thin rounded scales. Seed fully grown at midsummer, slightly obovoid, dark purple, 1′—1¼′ long, ¾′ thick, with a thin leathery covering, a light red-brown seed-coat furnished on the inner surface with 2 opposite longitudinal thin ridges extending from the base toward the apex, and conspicuously ruminate albumen.
A tree, occasionally 40° high, with a short trunk 1°—2° in diameter, whorls of spreading slightly pendulous branches forming a rather open pyramidal head tapering from a broad base. Bark ½′ thick, brown faintly tinged with orange color, and irregularly divided by broad shallow fissures into wide low ridges slightly rounded on the back and covered with thin closely appressed scales. Wood hard, strong, clear bright yellow, with thin lighter colored sapwood; largely used for fence-posts.
Distribution. On bluffs along the eastern bank of the Apalachicola River, Florida, from River Junction to the neighborhood of Bristol, Liberty County, and in the southwestern corner of Decatur County, Georgia (R. M. Harper). Rare and local.
Now often planted in the public grounds and gardens of Tallahassee, Florida.
2. [Torreya californica] Torr. California Nutmeg.
Tumion californicum Greene.
Leaves slightly falcate, nearly flat, dark green and lustrous on the upper, somewhat paler and marked below with a narrow band of stomata, tipped with slender callous points, 1′—3½′ long, 1/16′—⅛′ wide. Flowers appearing in March and April; male with broadly ovate acute scales; female nearly ¼′ long, with oblong-ovate rounded scales. Seed ovoid or oblong-ovoid, 1′—1½′ long, light green more or less streaked with purple.
A tree, 50°—70° but occasionally 100° high, with a trunk 1°—2° or rarely 4° in diameter, and whorls of spreading slender slightly pendulous branches forming a handsome pyramidal and in old age a round-topped head. Bark ⅓′—½′ thick, gray-brown tinged with orange color, deeply and irregularly divided by broad fissures into narrow ridges covered with elongated loosely appressed plate-like scales. Wood light, soft, close-grained, clear light yellow, with thin nearly white sapwood; occasionally used for fence-posts.
Distribution. Borders of mountain streams, California, nowhere common but widely distributed from Mendocino County to the Santa Cruz Mountains in the coast region and along the western slopes of the Sierra Nevada from Eldorado to Tulare Counties at altitudes of 3000°—5000° above the sea; most abundant and of its largest size on the northern coast ranges.
Rarely cultivated as an ornamental tree in California and western Europe.