Fern Sporangia #1
by Rogelio Moreno/science Photo Library
Title
Fern Sporangia #1
Artist
Rogelio Moreno/science Photo Library
Medium
Photograph - Photograph
Description
Fern sporangia. Fluorescence light micrograph of sporangia on the underside of a fern frond. Sporangia are spore-producing receptacles found in clusters called sori. Each sporangium is packed with spores (brown), which are the fern's reproductive cells. A rim of thick-walled cells, the annulus (green), functions to open and rapidly close each sporangium when the spores are mature, releasing them into the environment. Magnification: x223 when printed at 10 centimetres wide.
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September 24th, 2018
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