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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Science / Faculty of Science >
Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy >
Vol.XX, Nos.2-3 >
Engelhardia Fruits from the Tertialy of Japan
| 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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