Fern spore cases, light micrograph

Fern spore cases, light micrograph

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Caption: Fern spore cases. Polarised light micrograph of a frond of the maidenhair fern (Adiantum capillus- veneris), showing the sporangia (black, centre left) which contain the fern's spores. The spores of some ferns are found in a structure called an indusium, but this fern does not have a proper indusium, and the sporangia occur under a marginal flap.

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Keywords: adiantum capillis-veneris, anatomical, anatomy, biological, biology, botanical, botany, capsules, fern, light micrograph, light microscope, maidenhair fern, marginal flap, microscopy, nature, plant, polarised light micrograph, polarized, pteridophyta, reproduction, reproductive, sorus, sporangia, sporangium, spore, spore capsule, spores

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