. The cell; outlines of general anatomy and physiology. Fig. 71. Fig. 72. Fig. 71.—Transverse section through the thallus of Caulerpa prolifera at the place wherea branch is inserted. (After Strasburger, PL I., Fig. 1.) Fig. 72.—A Portion of a fairly old pith cell, with six layers from Clematis vitalba (afterStrasburger, PL I., Fig. 13); Ba similar cell after it has been swollen up by sulphuricacid. (After Strasburger, PL I., Fig. 14.) THE VITAL PROPERTIES OF THE CELL 167 refractive power (Figs. 71, 72 A and B). However, when thesurface is examined, a still more delicate structure can frequent
. The cell; outlines of general anatomy and physiology. Fig. 71. Fig. 72. Fig. 71.—Transverse section through the thallus of Caulerpa prolifera at the place wherea branch is inserted. (After Strasburger, PL I., Fig. 1.) Fig. 72.—A Portion of a fairly old pith cell, with six layers from Clematis vitalba (afterStrasburger, PL I., Fig. 13); Ba similar cell after it has been swollen up by sulphuricacid. (After Strasburger, PL I., Fig. 14.) THE VITAL PROPERTIES OF THE CELL 167 refractive power (Figs. 71, 72 A and B). However, when thesurface is examined, a still more delicate structure can frequentlybe seen. The cell membrane is faintly striated, looking as thoughit were composed of a large number of parallel layers ; these arecrossed by others running in an opposite direction. They run eitherlongitudinally and transversely—that is to say, like rings roundthe cell—or are arranged diagonally to the longitudinal axis of thecell. Nageli and Strasburger hold different opinions concerningthe relation of this delicate striation towards the se
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Keywords: ., bookcentury1800, bookdecade1890, bookidcelloutlines, bookyear1895
