毛茛科五新种

描述了毛茛科五新种:(1)托里乌头,与阿尔泰乌头近缘,区别为其茎和叶无毛,总状花序极密集,雄蕊花丝多有1或2小齿。(2)门源翠雀花,与大通翠雀花近缘,区别为其茎极短,花序总状,退化雄蕊瓣片不分裂。(3)云台山铁线莲,与裂叶铁线莲近缘,区别为其叶为二回羽状复叶,花较小,雄蕊花丝呈黑色,无脉。(4)黑丝铁线莲,与前种云台铁线莲在亲缘关系上极为相近,区别为其小叶较小,多呈狭卵形或披针形,聚伞花序也较小,通常只具3花。(5)五台山毛茛,与砾地毛茛相似,区别为其基生叶被柔毛,花瓣蜜槽具鳞片,心皮具短而粗的花柱和小柱头。

Five new species of Ranunculaceae from China

Five species belonging to four genera, Aconitum, Delphinium, Clematis and Ranunculus respectively(Ranunculaceae)are described as new from China:(1)Aconitum tuoliense, being described from Xingjiang Uygur Autonomous Region and related to A. smirnovii Steinb., and differing in its glabrous stem and leaves, very dense raceme, and mostly 1-2-denticulate filaments of stamens.(2)Delphinium menyuanense, being described from Qinghai Province and related to D. pylzowii Maxim., and differing in its very short stem, racemose inflorescence, and undivided limbs of staminodia.(3)Clematis yuntaishanica, being described from Henan Province, and related to C. parviloba Garden. & Champ., and differing in its bipinnate leaves, smaller flowers, and black, nerveless filaments of stamens.(4)Clematis melanonema, being described also from Henan Province and closely related to the above new species, C. yuntaishanica, and differing in its smaller, narrowly ovate or lanceolate leaflets, and smaller, usually 3-flowered cymes.(5)Ranunculus wutaishanicus, being described from Shanxi Province and similar to R. glareosus Hand.-Mazz., and differing in its pubescent basal leaves, nectary pit of petal with a scale, and carpel with a short and thick style and a minute stigma.