Polysiphonia sp. red alga

Polysiphonia sp. red alga

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Caption: Red alga. Light micrograph of the antheridia (or spermatagia, male reproductive structures) of a marine red alga (Polysiphonia sp.). These release male gametes (sex cells called spermatia) which then meet the female parts of the alga (carpogonia) and fertilise the female gametes. Magnification unknown.

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Keywords: alga, algae, algal, antheridia, antheridium, botany, cell, light micrograph, male, male sex cells, nature, plant, polysiphonia sp., red alga, sexual reproduction, spermatangia, spermatangium

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