Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 507
ng itself surrounded by an investment composed ofcellular tissue only; and sometimes we find the central portion,also, completely destitute of fibro-vascular bundles; so that a sortof indication of the distinction between Pith, Wood, and Bark ishere presented. This distinction, however, is very… … In its young state, the centre of the stem is always filled-up withcells ; but these not unfrequently disappear after a time, except at the nodes, leaving the stem hollow,as we see in the whole tribe ofGrasses. When a vertical sectionis made of a woody stem (as thatof a Palm) of sufficient length…
Microscopy · Biology
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