大兴安岭达尔滨湖桥弯藻科(硅藻门)中国新记录植物

刘妍; 王全喜; 施之新

大兴安岭达尔滨湖桥弯藻科(硅藻门)中国新记录植物

Newly Recorded Species of Cymbellaceae(Bacillariophyta) from Da’erbin Lake Daxing’anling Mountains, China

摘要

摘要: 报道了采自大兴安岭达尔滨湖及其周围沼泽水体的硅藻门桥弯藻科中国新记录植物9种1变种,分别为新箱形桥弯藻新月变种Cymbella neocistula var.lunata Krammer、近箱形桥弯藻Cymbella subcistula Krammer、疏纹内丝藻Encyonema paucistriatum(Cleve-Euler)Mann、普通内丝藻Encyonema vulgare Krammer、尖锐弯肋藻Cymbopleura acuta(Schmidt)Krammer、英吉利弯肋藻Cymbopleura anglica(Lagerstedt)Krammer、线形弯肋藻Cymbopleura linearis(Foged)Krammer、十字形弯肋藻Cymbopleura stauroneiformis(Lagerstedt)Krammer、泰尼弯肋藻Cymbopleura tynnii(Krammer)Krammer、两尖拟内丝藻Encyonopsis amphioxys(Kützing)Liu et Shi。其中两尖拟内丝藻Encyonopsis amphioxys(Kützing)Liu et Shi为新组合。对这些种类进行了光镜观察,部分种类进行了扫描电镜观察,对其分类学特征进行了详细的描述,并记录了它们的生境特征。

Abstract: This paper reported 9 species and 1 variety of Cymbellaceae(Bacillariophyta) newly recorded in China.They are Cymbella neocistula var.lunata Krammer,Cymbella subcistula Krammer,Encyonema paucistriatum(Cleve-Euler) Mann,Encyonema vulgare Krammer,Cymbopleura acuta(Schmidt) Krammer,Cymbopleura anglica(Lagerstedt) Krammer,Cymbopleura linearis(Foged) Krammer,Cymbopleura stauroneiformis(Lagerstedt) Krammer,Cymbopleura tynnii(Krammer) Krammer.Encyonopsis amphioxys(Kützing) Liu et Shi.Of these species,Encyonopsis amphioxys(Kützing) Liu et Shi is a new combination.All of them were collected from Da’erbin lake and swamps around it in Daxing’anling Mountains.These species were observed with LM,some of them were observed with SEM,and their taxonomic characters and habitats were described.

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