Fern stem, light micrograph

Fern stem, light micrograph

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Caption: Fern stem, light micrograph. Transverse section through a rachis (stem) of the bracken fern (Pteridium aquilinum). Under the outer epidermis (black) is a thin cortex (deep red) of thick-walled cells (sclerenchyma). The rest of the stem consists of a supporting tissue of parenchyma cells (light pink). Within the stem, embedded in the parenchyma, are vascular strands (oval-round) called the meristeles. At the centre of these are thick-walled wood cells (xylem). Magnification: x14 when printed at 10 centimetres high.

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Keywords: anatomical, biological, biology, botanical, botany, bracken fern, cell, cells, cellular, cortex, cross-section, cut out, cut outs, cut-out, cut-outs, cutout, cutouts, epidermis, fern, ferns, flora, internal structure, light micrograph, light microscope, lm, meristele, meristeles, nature, parenchyma, part, parts, plant, plant anatomy, plants, pteridium aquilinum, pteridophyte, pteridophytes, rachis, sclerenchyma, section, sectioned, stem, structural, tissue, transverse, vascular, white background, xylem

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