J Integr Plant Biol. ›› 2003, Vol. 45 ›› Issue (2): 146-151.

• Research Articles • Previous Articles     Next Articles

Paleocene Wuyun Flora in Northeast China: Ulmus furcinervis of Ulmaceae

FENG Guang_Ping, Albert G. A BLAEV, WANG Yu_Fei and LI Cheng_Sen   

Abstract:

中国东北古新世乌云植物群:榆科叉脉榆
冯广平 Albert G.ABLAEV  王宇飞  李承森

(1. 中国科学院植物研究所,北京100093;2.pACIFIC oceanological Institute, Russian Academy of Sciences, Vladivostok 60041, Russia)


摘要: 根据叶结构特征,将黑龙江省古新世乌云植物群中的榆科叶化石确定为叉脉榆(Ulmus furcineruis (Borsuk)Ablaev),叶化石二级脉达缘且在叶缘区分叉、三级脉及顶、叶缘锯齿两侧边凸出。重新研究了前人鉴定为小叶普拉榆(Planera of .microphylla auce. non Newberry)和乌云珍珠梅(Sorbaria wuyungensis Tao et Xion)的叶化石并将其归入叉脉榆。
关键词: 叉脉榆;榆科;古新世

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