Handbook of practical botany for the botanical laboratory and private student (1908)
Strasburger, Eduard, 1844-1912, Hillhouse, William, 1850-1910 · London, S. Sonnenschein; New York, Macmillan · leaf 500
tion of direct oramitotic nuclear division in older cells the older internodes ofTradescantia virginica are especially suited. A longitudinal sec-tion, examined in water, shows them usually in considerablenumber (Fig. 162, A). The nuclei show the same internal struc-ture as before, but are,… … Fig. 161.—Lilium Martagon. Division of the pollen mother-cells, a to/, tirstdivision ; g io i, second division, a, the chromosome-pairs distributed over the nuclearmembrane, between them the rounded nucleolus ; b, multipolar origin of the nuclearspindle ; c, complete bipolar nuclear spindle, the…
Botany · Plant physiology · Microscopy
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