. The British Charophyta. Characeae -- Great Britain. STRUCTURE AND DEVELOPMENT. 23 stem-node, remaining quite short and undergoing division by means of longitudinal septa in the direc- tion of the axis, the lower (d) forming an internode, remaining undivided but lengthening considerably. In this way the stem of a Charophyte presents a. 3.—Young shoot of Nitella in successive stages (after Giesen- hagen) ( x c. 150). In i the apical cell a is undivided; in ii a portion b has been cut off from its base by a transverse section ; in iii the lower cell b has been subdivided into a stem-node c and
. The British Charophyta. Characeae -- Great Britain. STRUCTURE AND DEVELOPMENT. 23 stem-node, remaining quite short and undergoing division by means of longitudinal septa in the direc- tion of the axis, the lower (d) forming an internode, remaining undivided but lengthening considerably. In this way the stem of a Charophyte presents a. 3.—Young shoot of Nitella in successive stages (after Giesen- hagen) ( x c. 150). In i the apical cell a is undivided; in ii a portion b has been cut off from its base by a transverse section ; in iii the lower cell b has been subdivided into a stem-node c and an internode d. The young branchlets are shown in each figure crowing out from the lower nodes. o o particularly well-marked series of nodes and inter- nodes. The internodes consist each of a single elongated cylindrical cell never becoming divided but attaining in some species to the extraordinary length of 20 cm. Torsion is to a greater or less extent. 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, b. 1858. London, The Ray society
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Keywords: ., bookcentury1900, bookdecade1920, bookpublisherlondo, bookyear1920
