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 152
VASCULAR BUNDLE OF IRIS. 115 lively narrow cells, with abundant cell-contents, of the primary-wood parenchyma. Similar cells also surround the vessels onthe flanks of the bundle, and separate them from the ground-tissue (shaded cellsin Fig. 42). At theinner margin of thewood are alwaysto be seen… … is the regularity ofarrangement sogreat, as in Zea.The cells withbroader cavities arethe sieve - tubes,the sm aller ones,marked by theirabundant cell-con-tents, the com-panion - cells. Inthe outer region ofthe bast lie thecrushed proto-phloem elements(pr), to which wehave already re-ferred, which…
Botany · Plant physiology · Microscopy
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