Pine cone scale, light micrograph

Pine cone scale, light micrograph

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Credit: DR KEITH WHEELER/SCIENCE PHOTO LIBRARY

Caption: Pine cone scale. Light micrograph of a vertical section through an ovulate scale from a Scots pine (Pinus sylvestris). This image shows the ovule (oval shape), within which is the prothallus tissue that contains two archegonia (dark blue), each with an ovum (female reproductive cell). Pine cones can take years to develop, eventually opening up to release their seeds that develop from the structures seen here.

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Keywords: anatomical, anatomy, archegonium, biological, biology, botanical, botany, cone, conifer, embryo, female, gymnosperm, light micrograph, light microscope, longitudinal, microscopy, nature, ovulate scale, ovule, pine, pinus sylvestris, plant, prothallus, reproduction, reproductive, scale, scots pine, section, sectioned, seed

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