American journal of pharmacy . of the sarkogen layer increase rapidly in size, become roundin shape, and form intercellular spaces. This tissue forms the bulkof the ripe fruit. Each cell is rich in contents, which, on cookingor treatment with alcohol, yields a shriveled, opaque mass. ^Ztschr. f. angew. Mikroskopie, 1896, 2, 97. Am. Jour. September, ilKM. J Anatoviy of Edible Berries, 433 (4) Bundles.—Spiral and annular vessels from 0005 to o-oiomillimeter in diameter, and thin-walled, elongated cells, are the con-spicuous elements of the bundles. (5) Pith.—Large berries often contain
American journal of pharmacy . of the sarkogen layer increase rapidly in size, become roundin shape, and form intercellular spaces. This tissue forms the bulkof the ripe fruit. Each cell is rich in contents, which, on cookingor treatment with alcohol, yields a shriveled, opaque mass. ^Ztschr. f. angew. Mikroskopie, 1896, 2, 97. Am. Jour. September, ilKM. J Anatoviy of Edible Berries, 433 (4) Bundles.—Spiral and annular vessels from 0005 to o-oiomillimeter in diameter, and thin-walled, elongated cells, are the con-spicuous elements of the bundles. (5) Pith.—Large berries often contain large intercellular spaces orcavities in the pith, formed by the tearing asunder of the cells dur-ing the rapid growth. Pericarp.—(i) Epicarp {Fig. j, epi)—Seen in surface view, thecells are polygonal, 0015 to 0-05 millimeter in diameter, with thinwalls; but in transverse or longitudinal section, they are rectangularand about o-02 millimeters thick. The cuticle is several times asthick as the radial walls of the Fig. 3.—Strawberry achene in transverse section. F, pericaip consisting ofepi, epicarp, mes, mesocarp, sp, spiral vessels, k, crystal layer, If, outer endo-carp with longitudinally extended fibres, and qf, inner endocarp with trans-versely extended fibres ; S, testa consisting of ep, epidermis with reticulatedcells, br, elongated brown cells ; N, h3aline layer (nucellus) ; E, endospermconsisting of a single layer of aleurone cells, x 300. (2) Mesocarp {Fig. j, mes). This layer is strikingly different fromthe mesocarp of most edible fruits in that it is not succulent, andconsists of only one, or in some parts two, cell layers. In crosssection the cells have much the same appearance as the epidermiscells, but usually have smaller dimensions. On the inner side arenumerous bundles, the branches of which run transversely aboutthe achene. (3) Crystal Layer {Fig. J, k).—Kraus described this layer as madeup of two cell layers; Tschierske, however, pointed ou
Size: 1858px × 1345px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookidamericanjournal76phi, booksubjectpharmacy
