J Syst Evol ›› 2006, Vol. 44 ›› Issue (6): 712-720.DOI: 10.1360/aps040129

• Research Articles • Previous Articles     Next Articles

Paleocene Wuyun flora in Northeast China: Woodwardia bureiensis, Dryopteris sp. and Osmunda sachalinensis

1 2 3WANG Qing, 4Albert G. ABLAEV, 1WANG Yu-Fei, 1 5LI Cheng-Sen*   

  1. 1(State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany,
    the Chinese Academy of Sciences, Beijing 100093, China)

    2(College of Life Sciences, Liaoning Normal University, Dalian 116029, China)

    3(Graduate School of the Chinese Academy of Sciences, Beijing 100039, China)

    4(Pacific Oceanological Institute, Russian Academy of Sciences, Vladivostok 600041, Russia)

    5(Beijing Museum of Natural History, Beijing 100050, China)
  • Received:2004-10-26 Published:2006-11-18

Abstract: Woodwardia bureiensis Fedotov, Dryopteris sp. and Osmunda sachalinensis Krysht. were first reported in the Paleocene Wuyun flora from Jiayin County, Heilongjiang Province, China, and they are also new records to China. Woodwardia bureiensis is different from other species of the genus in that the pinnules of sterile fronds have a closed space with touching margin. The pinnules of Osmunda sachalinensis Krysht. from Wuyun flora are broadly cuneate at their base, while those of O. greenlandica (Heer) Brown, described from the same flora previously, expand at the pinnule base.

Key words: Woodwardia, Dryopteris, Osmunda, Paleocene, Wuyun flora, China.