东北委陵菜属植物叶形态结构的研究及其分类学价值的探讨
孙天航, 刘玫*, 孙雪芹, 程薪宇, 茹剑

Morphological study on the leaf structures of Potentilla in Northeastern China and its taxonomic value (Rosaceae)
SUN Tian-hang, LIU Mei, SUN Xue-qin, CHENG Xin-yu, RU Jian
图3 东北委陵菜属植物叶柄横切面
Fig.3 The transverse sections of petioles of Rosaceae in northeastern China 示横切面形状、维管束分布。Showing the shapes of transverse sections and distribution of vascular bundles. A.鹅绒委陵菜 P. anserina ;B.光叉叶委陵菜 P. bifurca ;C.委陵菜 P. chinensis ;D.翻白委陵菜 P. discolor ;E.莓叶委陵菜 P. fragarioides ;F.三叶委陵菜 P. freyniana ;G.金露梅 P. fruticosa ;H.银露梅 P. glabra ;I.伏委陵菜 P. supina ;J.蒿叶委陵菜 P. tanacetifolia ;K.粘委陵菜 P. longifolia ;L.匍枝委陵菜 P. yokusaiana 。比例尺Scale:A, B, C, D, F, I, J, K, L=200 μm; E=400 μm; G, H, J=100 μm.