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 254
ously the differentia-tion of the inner tissueof the stem progresses,especially the separa-tion into denser, small-celled, thin nodes, andless dense, elongated-celled, long internodes(Fig. 86). First the larger-celled pith begins to separate out inthe middle of the stem. In the fifth internode,… … Fig. 86.—Median longitudinal section througli amain vegetative shoot of Equisetum arvense ;pv, grow-ing apex of the main axis ; g, initial for a bud ; g, g,g, g, stages in the development of such a bud ; r,r, the origin of a root on the bud ; m, ditterentiationof the primary pith ; ?.s-, spiral…
Botany · Plant physiology · Microscopy
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