【摘要】 <正>报道了杨柳科上的钩丝壳属(Uncinula Lév.)的1个新组合和4个新种。新组合是:Uncinula adunca(Wallr.ex Fr.)Lév.val.mandshurica(Miura)comb.nov.东北钩状钩丝壳。新种足:1.Uncinula fragilis sp.nov.易断钩丝壳,2.Uncinula longispora sp nov.长孢钩丝壳,3.Uncinula pseudocedrelae sp.nov.假香椿钩丝壳,和4.Uncinula regularissp.nov.规则钩丝壳。有包括新种及其他已知种在内的杨柳科上钩丝壳属分种检索表。Uncinula adunca(Wallr.ex Fr.)Lév.var.mandshurica(Miura)comb.nov.有汉文描述。4个新种则有拉丁文及汉文描述并在每一个种下面讨论了该种与杨柳科和其他科上的近似种之间的区别。更多还原

【Abstract】 One new combination and four newspecies of Uncinula Lév.on Salicaceaeare reported.The new combination is:Uncinula adunca (Wallr.ex Fr.) Lév.var.mandshurica (Miura) comb.nov.,the four new species being:1) Uncinulafragilis sp.nov.,2) Uncinula longisporasp.nov.,3) Uncinula pseudocedrelae sp.nov.,and 4) Uncinula regularis sp.nov.Key to the new species as well as theknown species of the genus Uncinula on Salicaceae is presented.Chinese diagno-sis for Uncinula adunca (Wallr.ex Fr.)Lév.var.mandshurica (Miura) comb.nov.,Latin and Chinese diagnoses forthe four new species are given.Differen-ces between the four new species andtheir related species on Salicaceae andother families are also discussed.更多还原