. The British Charophyta. Characeae. STRUOTUEE AND DEVELOPMENT. 55 bouring antheridia adhere and through which they penetrate to the oosphere within. Presumably the process described by De ^ary in the one species {Chara vulgaris) prevails in the other Charophytes in wTiich the coronula is persistent. In species in which it is deciduous the apices of the spiral-cells dilate instead of lengthenings and when the coronula falls a direct apical approach to the oosphere is formed through which, there can be little doubt, fertilization is effected. After fertilization the oosphere becomes an oospore.

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. The British Charophyta. Characeae. STRUOTUEE AND DEVELOPMENT. 55 bouring antheridia adhere and through which they penetrate to the oosphere within. Presumably the process described by De ^ary in the one species {Chara vulgaris) prevails in the other Charophytes in wTiich the coronula is persistent. In species in which it is deciduous the apices of the spiral-cells dilate instead of lengthenings and when the coronula falls a direct apical approach to the oosphere is formed through which, there can be little doubt, fertilization is effected. After fertilization the oosphere becomes an oospore. 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