Fern spore capsule, light micrograph

Fern spore capsule, light micrograph

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Caption: Fern spore capsule, polarised light micrograph. Transverse section through the frond of a hart's tongue fern (Phyllitis scolopendrium), showing the sporangia (centre). On the underside of the frond is a lens-shaped structure called a sori. This contains numerous stalked sporangia (round), containing reproductive spores. The edge of the sori is made up of thick-walled cells (bright red, green, and yellow), which help to disperse the spores by exploding. Magnification: x45 when printed at 10 centimetres wide.

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Keywords: anatomical, biological, biology, blue background, botanical, botany, cell, cells, cellular, cross-section, fern, ferns, flora, frond, hart's tongue fern, internal structure, light micrograph, light microscope, lm, nature, part, parts, phyllitis scolopendrium, plant, plant anatomy, plants, plm, polarised, polarized, pteridophyte, pteridophytes, reproduction, reproductive, reproductive part, reproductive parts, scolopendrium vulgare, section, sectioned, sori, sorus, sporangia, sporangium, spore capsule, spore capsules, structural, tissue, transverse

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