Fragilaria flexura sp nov (Bacillariophyceae) - A new freshwater diatom from a meso-oligotrophic mountain lake on the Kamchatka Peninsula, Russia

被引：7

作者：

Hoff, Ulrike ^{[1
]}

Lange-Bertalot, Horst ^{[2
,3
]}

Diekmann, Bernhard ^{[1
]}

机构：

[1] Alfred Wegener Inst Polar & Marine Res, D-14473 Potsdam, Germany

[2] Goethe Univ Frankfurt, Inst Ecol, D-60054 Frankfurt, Germany

[3] Senckenberg Res Inst, D-60054 Frankfurt, Germany

来源：

NOVA HEDWIGIA | 2011年 / 92卷 / 3-4期

关键词：

Fragilaria flexura; Diatoms; Bacillariophyceae; Freshwater; Meso-oligotrophic mountain lakes; Cold water species; Kamchatka; Russia; ILPINSKII PENINSULA;

D O I：

10.1127/0029-5035/2011/0092-0441

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

A new freshwater diatom, Fragilaria flexura sp. nov., was identified from light and scanning electron micrographs of sediment core material from a mountain lake in the Sredinny Mountains of Kamchatka Peninsula (Russia). Fragilaria flexura sp. nov. possesses an unique combination of morphological features, which allows its discrimination from previously identified, similar taxa such as Fragilaria cyclopum and Hannaea areas. Fragilaria flexura sp. nov. is characterized by its valve outline, which is sickle-shaped and may or may not have a notch-like depression on the ventral margin, narrowly rounded ends and a very large, bilateral, hyaline central area. Fragilaria flexura sp. nov. seems to prefer meso-oligotrophic habitats.

引用

页码：441 / 451

页数：11

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