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 155
e increasein thickness of the stem.It belongs in origin to theperipheral ground-tissueof the central cylinder,or stele; to the regionwhich we know as thepericycle. Its cells arein active division, andproduce on their inner,and to a much smallerextent their outer, side new elements. These divisions… … ^^c^ Fig, 44.—Dracaena [Cordyline) rubra. Cross-sec-tion tlirongli the stem. /, vascular bundles,./ beingl)riniary, / secondary, and/ leaf-bundles; vi,unlignitied elements of the ground-tissue; s, ligni-fied elements of the ground-tissue, sheathing thevascular bundles ; t, tracheides ; c,…
Botany · Plant physiology · Microscopy
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