. The British Charophyta. Characeae. II Fig. 9.—Transverse sections of stems showing various types of cortex of Chara. Triplostiolious: i. Isostichous—C. fragilis; ii. Aniso- stichous—0. ddicatula. Diplostichous: iii. Tylacanthous—C. bal- tica; iv. Aulacantlious—C rudis. In ii and iii spine-cells are shown to indicate primary cortical rows. Haplostichous : v. Contiguous —C. canescens; vi. Non-contiguous— C. imperfecta. branchlet (Figs. 8 iii, 9 v, vi). The cortical-rows may be contiguous (Figs. 8 iii, 9 v) or non-contiguous (Fig. 9 vi). The second direction in 'which division takes place in th


. The British Charophyta. Characeae. II Fig. 9.—Transverse sections of stems showing various types of cortex of Chara. Triplostiolious: i. Isostichous—C. fragilis; ii. Aniso- stichous—0. ddicatula. Diplostichous: iii. Tylacanthous—C. bal- tica; iv. Aulacantlious—C rudis. In ii and iii spine-cells are shown to indicate primary cortical rows. Haplostichous : v. Contiguous —C. canescens; vi. Non-contiguous— C. imperfecta. branchlet (Figs. 8 iii, 9 v, vi). The cortical-rows may be contiguous (Figs. 8 iii, 9 v) or non-contiguous (Fig. 9 vi). The second direction in 'which division takes place in the node-cells of the cortex is by the cutting off of a portion from the outer side of the periphery, that is the side farthest from the axis of the stem. The result of this is the production of outward free-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Groves, James; Bullock-Webster, George Russell, 1858- joint author. London, The Ray society


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Keywords: ., bookcentury1900, bookdecade1920, bookpublisherlondo, bookyear1920