. Text-book of botany, morphological and physiological. Botany. 383 MVSCINEM. mella. The intercellular space is traversed by rows of cells which stretch across from the wall of the theca to the inner mass of tissue; they resemble most nearly proto- nemal filaments, or those of Algae, but have been formed by simple differentiation of the tissue of the theca. They contain chlorophyll-granules like the inner cell-layers of the wall. The outer layer of the wall of the theca is developed into a very character- istic epidermis strongly cuticularised externally. The third or fourth layer of cells of
. Text-book of botany, morphological and physiological. Botany. 383 MVSCINEM. mella. The intercellular space is traversed by rows of cells which stretch across from the wall of the theca to the inner mass of tissue; they resemble most nearly proto- nemal filaments, or those of Algae, but have been formed by simple differentiation of the tissue of the theca. They contain chlorophyll-granules like the inner cell-layers of the wall. The outer layer of the wall of the theca is developed into a very character- istic epidermis strongly cuticularised externally. The third or fourth layer of cells of the inner mass of tissue, which is therefore separated from the annular air-cavity by two or three layers of cells (forming the spore-sac), produces the mother-cells of the spores. The cells of this layer are first of all distinguished by being densely filled with proto-. FlG. 268.—Funaria hygrometrica; transverse section through the spore- sac ; A, su the primary mother-cells ; B, sm the spore-mother-cells not yet isolated ; a outer side, i inner side, of the spore-sac.(x 550).. 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 Sachs, Julius, 1832-1897; Vines, Sydney Howard, 1849-1934. ed. and tr. Oxford, Clarendon press
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbotany, bookyear1882
