Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 674
posed of unchanged cellular tissue(c, c) that pass between the pith and the bark. The pith (fig. 483, a)is almost invariably composed of cellular tissue only, which usuallypresents (in transverse section) a hexagonal areolation. AVhennewly formed it has a greenish hue, and its cells are filled… … Fig. 483.—Transverse section of stem of Clematis: a, pith; b, b, b, woody bundles; c, c, c, medullary raj s. the stem should increase with extreme rapidity it becomes hollow,the pith being reduced to fragments, which are found adhering toits interior wall. The pith is immediately surrounded by a…
Microscopy
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