figure 81

vessel element, probably aspen, in bulky (featherweight) printing paper (100x) (sample 166: Bass, 1930 paper sample 20). Vessel with crowded alternate intervessel pitting (1), the shape of the opening on the vessel ending (if present) is not discernible because the vessel is collapsed. Softwood tracheid (2) [micrographs and z-stack BvV].


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