. Physiological botany; I. Outlines of the histology of phænogamous plants. II. Vegetable physiology. Plant physiology; Plant anatomy. 378 VEGETABLE GROWTH. somewhat lengthened in the direction of the long axis of the cell, and contains several nucleoli. When it begins to grow, these nucleoli disappear, and the characteristic striation previously de- scribed appears transverse to the direction of future division and of the nuclear disc. The latter is not clearl3- defined, and its halves do not recede from one another very far, since, in fact, there is not space for much expansion in any event.
. Physiological botany; I. Outlines of the histology of phænogamous plants. II. Vegetable physiology. Plant physiology; Plant anatomy. 378 VEGETABLE GROWTH. somewhat lengthened in the direction of the long axis of the cell, and contains several nucleoli. When it begins to grow, these nucleoli disappear, and the characteristic striation previously de- scribed appears transverse to the direction of future division and of the nuclear disc. The latter is not clearl3- defined, and its halves do not recede from one another very far, since, in fact, there is not space for much expansion in any event. The parti- tion wall at first is confined to the space between the halves, and these are found in close contact with it, but later it extends. completely across. The remarkable thickness of the radial walls of the cambium is explained by Sanio as due to the non-absorp- tion of a part of the mother-cell; but Strasburger ascribes it to the uninterrupted nutrition of the radial wall from the contents of the cell itself. The newly formed partition-wall is thin, and cannot be shown by reagents to be ' 1 The student should consult Strasburger's work : Ueber den Theilungs- vorgang der Zellkerne, 1882 ; also Das botanische Praoticum, chap, xxxiv. Fig. 165. Behavior of nucleus during ceU-aivision in the eudosperm of Alliiun to illustrate the extraordinary complexity of the stained bodies. The dark lines represent the chromatin. (Flemming.). 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 Goodale, George L. (George Lincoln), 1839-1923. New York [etc. ] : American Book Co.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectplantanatomy, bookyea
