File:Ppp37-fig-0001-m.jpg

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English: (a) Ginkgo leaves bursting from a short shoot in the spring, showing the young ovulate shoots each bearing a pair of sessile ovules. Note that the leaves are not bilobed and that the leaf margin is entire. Japan; (b) Bright yellow ginkgo leaves in the late autumn. Note the bilobed leaves typical of those produced on ginkgo long shoots. U.S.A.; (c) Reconstructions of the leaves and seed‐bearing structures of three different extinct ginkgo‐like plants discovered and described by Zhou Zhiyan from the Middle Jurassic, about 170 Mya, at the Yima mine in Henan Province, China. Left: Ginkgo yimaensis showing lobed leaves and seeds borne on short stalks; top right: Yimaia recurva showing deeply‐lobed leaves with linear leaf segments and seeds borne in clusters; bottom right: Karkenia henanensis showing deeply‐lobed leaves with linear leaf segments and seeds borne in elongated, cone‐like, aggregations. Photographs: Peter Crane. Drawing (c) by Pollyanna von Knorring
Date
Source An evolutionary and cultural biography of ginkgo
Author Peter R. Crane, Pollyanna von Knorring
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4 December 2018

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current21:40, 13 April 2021Thumbnail for version as of 21:40, 13 April 20212,128 × 1,583 (902 KB)HemiaucheniaTransferred from https://nph.onlinelibrary.wiley.com/cms/asset/10f5d82f-bda9-42ce-8fb5-6d8dac64701d/ppp37-fig-0001-m.jpg
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