Moss perigonium, light micrograph

Moss perigonium, light micrograph

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Caption: Moss perigonium. Light micrograph of a section through the perigonium of a male haircap moss (Polytrichum formosum) plant, showing the paraphysis (pink, centre) and antheridia (male reproductive organs, red, centre) inside. The perigonium is a bundle of modified leaves surrounding the antheridia. The antheridia produce the male gametes (antherozoids, 'sperm') which fuse with the female ova (eggs) to ultimately form spores. Magnification: x7 when printed 10 centimetres wide.

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Keywords: 1, anatomical, anatomy, antheridia, antheridium, antherozoid, antherozoids, biological, biology, botanical, botany, cell, cells, cut out, cut outs, cut-out, cut-outs, cutout, cutouts, dioecious, flora, haircap moss, histological, histology, leaf, light micrograph, light microscope, male, modified leaves, moss, nature, no-one, nobody, one, organs, paraphysis, part, parts, perigonium, plant, plants, polytrichum formosum, reproductive structure, section, sectioned, sex organ, single, structures, white background, wildlife

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