应用解剖镜和扫描电镜对中国产蓼属春蓼组(Polygonumsect.Persicaria)19种3变种植物的果实形态和果皮微形态特征进行了观察和研究。结果表明,蓼属春蓼组植物的果实形态为卵形或椭圆状卵形,具三棱、双凹或双凸,顶端渐狭,有喙或无喙;果皮...应用解剖镜和扫描电镜对中国产蓼属春蓼组(Polygonumsect.Persicaria)19种3变种植物的果实形态和果皮微形态特征进行了观察和研究。结果表明,蓼属春蓼组植物的果实形态为卵形或椭圆状卵形,具三棱、双凹或双凸,顶端渐狭,有喙或无喙;果皮微形态可分为7种类型:洼点、浅洼点,脑纹状纹饰,拟脑纹状纹饰,网状纹饰,不规则褶皱,不规则小疣状颗粒以及密浅网状纹饰。观察结果支持将绵毛酸模叶蓼(P.lapathifoliumL.var.salicifoliumSibth.)合并到酸模叶蓼(P.lapathifoliumL.),做为酸模叶蓼的异名处理;支持将长鬃蓼(P.longisetumDe Br.)作为丛枝蓼(P.posumbuBuch.-Ham.ex D.Don)的变种处理的意见;认为密毛酸模叶蓼(P.lapathifoliumL.var.lanatum(Roxb.)Stew.)应恢复种级,圆基长鬃蓼(P.longisetumDe Br.var.rotunatumA.J.Li)应升为种级;支持平武蓼(Polygonum pingwuenseF.Z.Li et Y.T.Hou et S.J.Fan,sp.nov.)新种的成立。展开更多
During the last several years, knowledges about systematics and evolution of the family Brassicaceae have increased greatly. As a natural taxon, the family is well defined by its cross corolla, stamens tetradynamous, ...During the last several years, knowledges about systematics and evolution of the family Brassicaceae have increased greatly. As a natural taxon, the family is well defined by its cross corolla, stamens tetradynamous, silique or siliqua, and so on. But there are still some problems among its tribes, subtribes and genera. And because of the unclear of the genera delimition, there are many debates on the attaching of some species.展开更多
文摘应用解剖镜和扫描电镜对中国产蓼属春蓼组(Polygonumsect.Persicaria)19种3变种植物的果实形态和果皮微形态特征进行了观察和研究。结果表明,蓼属春蓼组植物的果实形态为卵形或椭圆状卵形,具三棱、双凹或双凸,顶端渐狭,有喙或无喙;果皮微形态可分为7种类型:洼点、浅洼点,脑纹状纹饰,拟脑纹状纹饰,网状纹饰,不规则褶皱,不规则小疣状颗粒以及密浅网状纹饰。观察结果支持将绵毛酸模叶蓼(P.lapathifoliumL.var.salicifoliumSibth.)合并到酸模叶蓼(P.lapathifoliumL.),做为酸模叶蓼的异名处理;支持将长鬃蓼(P.longisetumDe Br.)作为丛枝蓼(P.posumbuBuch.-Ham.ex D.Don)的变种处理的意见;认为密毛酸模叶蓼(P.lapathifoliumL.var.lanatum(Roxb.)Stew.)应恢复种级,圆基长鬃蓼(P.longisetumDe Br.var.rotunatumA.J.Li)应升为种级;支持平武蓼(Polygonum pingwuenseF.Z.Li et Y.T.Hou et S.J.Fan,sp.nov.)新种的成立。
文摘During the last several years, knowledges about systematics and evolution of the family Brassicaceae have increased greatly. As a natural taxon, the family is well defined by its cross corolla, stamens tetradynamous, silique or siliqua, and so on. But there are still some problems among its tribes, subtribes and genera. And because of the unclear of the genera delimition, there are many debates on the attaching of some species.
