The pinetum : being a synopsis of all the coniferous plants at present known, with descriptions, history and synonyms, and a comprehensive systematic index / by George Gordon.

  • Gordon, George, 1806-1879.
Date:
1875
Catalogue details

Licence: Public Domain Mark

Credit: The pinetum : being a synopsis of all the coniferous plants at present known, with descriptions, history and synonyms, and a comprehensive systematic index / by George Gordon. Source: Wellcome Collection.

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    Cones pendent, oblong, rather large, brittle, and covered with divergent scales, which are very deciduous, pointed and extended at the apex, and heart-shaped at the base. Seeds irregularly shaped, with a soft tliin covering, and ample wings. Gen. Cedrcs, Link (the Cedars). Leaves pt'rsisteut, needlo- sliaped, somewhat four-sided, stiff, and duqwsod in bundles on the adult branches. Floicers, male and female mostly on the same plant, but separate. Cofies erect, ovate, bluntly depressed at the ends, axillary, and growing on the upper side of the branches, with thin, closely-placetl scales, more or less deciduous. Seeds somewhat angular, with a soft tegumental covering, full of tur{)entine, and ample, persistent wings. Sec. II. AKAUC.VRL'E. Scales one-seeded. Gen. Aiuucaria, Jussieu (the Araucarias). Leaves scale- formetl, persistent, and widest at the base. Flowers, mole and female on sejiarate plants. Cones mostly large, globular, and terminal; with tho scales deciduous, or partially jk). Seeds more or less attached to tho scales. Sec. I. CoLUMBEA, or the true Araucarias, with broad- lanceolate leaves, and seetl-leaves germinating under ground. Sec. II. Eutacta, or False Araucarias, with awl-shaped leaves, and seed-leaves produced above ground. Gen. Dammara, liumphius (the Wax Pinos). Leaves broad, flat, petiolated, opjwsito or alternate, and leathery. Flowers, male and female on separate j)lants. Cones ovate or globular, axillary, and with persistent scales, wanting the dorsal bractca. Seeds unattached and solitary. See. III. CUNXINCIIAMI/E. Seeds free, and from three to under each scale. seven