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Ophioglossum sporophyte and fruiting spike. Sketched by Gwen with colored pencils in 1980 looking at specimens during lab, plant anatomy undergraduate class at…

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Biology

Filicopsida. Ophioglossaceae: sporophyte and fruiting spike of Adder's tongue fern. Sketched by Gwen in 1980 at University of Vermont.

Botanical Illustration

Gwen Diane Ph. D. Paleobotany

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