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Vol.XX, Nos.2-3 >

Engelhardia Fruits from the Tertialy of Japan

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Title: Engelhardia Fruits from the Tertialy of Japan
Authors: Tanai, Toshimasa Browse this author
Uemura, Kazuhiko Browse this author
Issue Date: Feb-1983
Publisher: 北海道大学
Journal Title: 北海道大学理学部紀要
Journal Title(alt): Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy
Volume: 20
Issue: 2-3
Start Page: 249
End Page: 260
Abstract: The winged fruits of Engelhardia (Juglandaceae) are described on the basis of the new materials from Kitami in Hokkaido and Heki in Yamaguchi Prefecture, in addition to the re-investigation of the type specimens of E. koreanica Oishi and E. poronaica Endo. All the winged fruits known from East Asia are identical with E. koreanica in all characters. E. koreanica is characterized by trilobed fruits which have marked stalk, pinnate venation, straight primaries reaching the apices and branched fine veinlets. E. koreanica shows a close relationship to the extant E. roxburghiana Wall. of the section Psilocarpeae in the above-noted characters. Reviewing Engelhardia bearing floras in Japan, North Korea, southern Primorye and Sikhote-Alin, they are concluded to be of Late Oligocene age by floristic composition, as well as by K-Ar datings and other biostratigraphic evidences.
Type: bulletin (article)
URI: http://hdl.handle.net/2115/36720
Appears in Collections:Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy > Vol.XX, Nos.2-3

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