Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 678
STRUCTURE OF STEMS 63I matous cells; and they are seen to be here of somewhat greater thick-ness, being composed of two or three rows of cells, arranged side by side. … Fig. 489.—Portion of vertical section of thesame wood, taken in a radial direction,showing the tracheides with borderedpits, without ducts, crossed by the medul-lary rays, a, a.
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