. Elements of plant anatomy;. Botany -- Anatomy. ANATOMY OF TISSUES. 119 periblem, and plerome. Besides these, in certain instances tliere is an independent, separate meristem named calyptrogen which gives rise to the root-cap. Thus there are in the most complex roots, four distinct primary meristems. Others lack the calyp-. Longitudinal section through root tip of Zea Mais. W root-cap ; i younger part, z cells loosening from cap. s point of vegetation, o epidermis, p' periblem. p plerom. d dermatogen bounded on the under side by the calyptrogen. x 150. — ( Wiesner.) trogen, the cap tissue the
. Elements of plant anatomy;. Botany -- Anatomy. ANATOMY OF TISSUES. 119 periblem, and plerome. Besides these, in certain instances tliere is an independent, separate meristem named calyptrogen which gives rise to the root-cap. Thus there are in the most complex roots, four distinct primary meristems. Others lack the calyp-. Longitudinal section through root tip of Zea Mais. W root-cap ; i younger part, z cells loosening from cap. s point of vegetation, o epidermis, p' periblem. p plerom. d dermatogen bounded on the under side by the calyptrogen. x 150. — ( Wiesner.) trogen, the cap tissue there being derived from what is termed the reciprocal division of some of the other meristems. That is, the meristematic cells give off new cells in two directions, some outward, forming the cap, others inward which are added to the lonor axis of the root. The farther consideration of this subject belongs to a more advanced course in 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 Gregory, Emily L. Boston, London, Ginn & Co.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbotanya, bookyear1895
