Engelhardia Fruits from the Tertialy of Japan

Tanai, Toshimasa; Uemura, Kazuhiko

北海道大学理学部紀要, 1983, 20(2-3), 249-260

Permalink : https://hdl.handle.net/2115/36720

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アクセス権	open access
URI	https://hdl.handle.net/2115/36720
タイトル	Engelhardia Fruits from the Tertialy of Japan
著者	著者名 Tanai, Toshimasa
著者	著者名 Uemura, Kazuhiko
言語	英語
発行日	1983-02
出版者	北海道大学
出版者	Hokkaido University
収録物名	北海道大学理学部紀要
収録物名	Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy
巻(号)	20(2-3)
ページ	249-260
抄録	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.
資源タイプ	紀要論文
出版タイプ	Version of Record
PISSN	0018-3474