Strobilus of Equisetum sp. with spores. Optical microscope X100.

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Photo credit: © José María Barres Manuel / Alamy / Afripics
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Keywords: asexual, cone, equisetaceae, equisetum, grass, horsetail, micrograph, microphotograhy, microscope, optical, organ, pteridophyta, reproductive, snake, sporangiophore, spores, strobilus