Technical Publication Volume 12-17 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1920 Excerpt: ...over the temperate and in many parts of the tropical regions of the world. Five species are indigenous to the United States, three of which become arborescent. Leaves alternate or suboppoaite, deciduous or persistent, simple, entire or dentate, petiolate, conduphcate in the hud. Flowers perfect or polygamodioecious, axillary, borne in simple or compound racemes or fascicled cymes; calyx, campanulate, 4-5-lobed; petals 4-5, emarginate, infolded around the stamens or lacking; stamens 4--5, with short filaments and ovate-oblong or sagittate anthers; pistil consisting of a free 2-4-celled, ovoid ovary surmounted by a 3-4-cleft or lobed style. Fruit an oblong or spherical drupe with thick succulent flesh, containing 2-4 1-seeded nutlets; seed erect, grooved, with scanty albumen. Rhamims cathartica L. was introduced from Kurope for ornamental purposes and has become naturalized in New York State. LINDEN FAMILY. TILIACEAE A large family of trees, shrubs and herbs comprising about thirty-five genera and approximately two hundred and fifty species, mainly tropical and most abundantly represented south of the equator. Three genera are North American, one of which, Tilia, is arborescent. Leaves chiefly alternate, simple, deciduous, stipulate. Flowers perfect, regular, generally in cymes or panicles; sepals 3-5, valvate, deciduous; petals of the same number, fewer, or none; stamens numerous, generally 5-10adelphous; pistil consisting of a sessile. 2-10-ielled ovary terminated by a columnar style and capitate stigma. Fruit drupaceous or nut-like; seeds albuminous; cotyledons foliaceous. THE LINDENS OR BASSWOODS. Genus TILIA (Tourn.) L. The genus Tilia comprises some twenty species of trees and is widely distributed in the temperate regions of the northern hemisphere wit...