GOMPHONEMA SICHUANENSIS LI & KOCIOLEK SP. NOV. AND GOMPHONEMA HEILONGTANENSIS LI, KOCIOLEK ET METZELTIN SP. NOV. FROM TWO HIGH MOUNTAIN LAKES, CHINA
GOMPHONEMA SICHUANENSIS LI & KOCIOLEK SP. NOV. AND GOMPHONEMA HEILONGTANENSIS LI, KOCIOLEK ET METZELTIN SP. NOV. FROM TWO HIGH MOUNTAIN LAKES, CHINA
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DOI：
10.1080/0269249x.2010.9705831
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发表时间：
2010-05
期刊：
影响因子：
1.8
通讯作者：
Yanling Li;J. Kociolek;D. Metzeltin
中科院分区：
文献类型：
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作者：
Yanling Li;J. Kociolek;D. Metzeltin
本文描述了采自中国四川南部的异极藻属两新种，并利用光学显微镜和扫描电子显微镜观察了它们的瓣形态。四川异音线虫Gomphonema sichuanensis sp. nov.和四川异音线虫G.黑龙潭新种（Heilongtanensissp. nov.）在大水草湖和黑龙潭湖发现了大量的鱼类。G.的主要特征sichuanensis为棍棒状裂爿，头端宽圆形，足端窄圆形，轴区窄，中央区不明显，脊波状明显，侧脊明显，柱头与纹分离明显，纹稍放射状。G.的主要特征黑龙江裂瓣为棒状，楔状，先端锐圆，足极窄圆，轴向窄，中央小圆，平行纹在瓣中心向顶端略呈放射状。尽管中国对淡水硅藻的研究历史悠久，但要记录这个地理复杂的大国的植物群，还有很多工作要做。
This paper describes two new Gomphonema species from the southern Sichuan Province, China, and shows their valve morphology using light and scanning electron microscopy. The two species, Gomphonema sichuanensis sp. nov. and G. heilongtanensis sp. nov., were found in Lake Dashuicao and Lake Heilongtan. Main features of G. sichuanensis are clavate valves, broadly rounded headpole, narrowly rounded footpole, narrow axial area, indistinct central area, undulate and distinctly lateral raphe, clearly separated stigma from stria, and slightly radiate striae. Main features of G. heilongtanesis are clavate valves with wedge-shaped, acutely rounded headpole and narrowly rounded footpole, narrow axial area, small rounded central area, and parallel striae in the valve center becoming slightly radiate towards the apices. Despite a long history of research on freshwater diatoms in China, there is still much work to do to document the flora of this large and geographically complex country.