FRESH-WATER AND BRACKISH WATER THALASSIOSIRA BACILLARIOPHYCEAE - TAXA WITH TANGENTIALLY UNDULATED VALVES
FRESH-WATER AND BRACKISH WATER THALASSIOSIRA BACILLARIOPHYCEAE - TAXA WITH TANGENTIALLY UNDULATED VALVES
复制标题
DOI：
10.2216/i0031-8884-28-1-120.1
复制
发表时间：
1989-03-01
期刊：
影响因子：
1.6
通讯作者：
LANGE, CB
中科院分区：
文献类型：
--
作者：
HASLE, GR;LANGE, CB
一些具有波状瓣膜的海链藻物种已在光学显微镜和电子显微镜下进行了检查，部分使用了类型材料。根据内部瓣片的结构区分出两组分类群。Thalassiosira laustris，Thalassiosira laustris.ET STAT.11月[=科西诺迪斯乳突变种Australiens]和T.gessneri在淡水或微咸水中具有连续的筛板径向之字形轨迹。Hhalassiosira Hyperborea与北极的Sepventrionalis变种和波罗的海的Pelagica和Lacunosa变种一起，都有单独的筛子。变种的可能性。、天冬青和变种腔隙是var的休眠阶段。金丝桃属和变种。Pelagica，分别进行了讨论。
Some Thalassiosira species with undulated valves have been examined in light and electron microscopes, partly by using type material. Two groups of taxa are distinguished based on the internal valve structure. Thalassiosira lacustris, T. australiensis comb. et stat. nov. [= Coscinodiscus lacustris var. australiensis] and T. gessneri from fresh or brackish water have radial zig-zag paths of continuous cribra. Thalassiosira hyperborea together with the varieties septentrionalis from the Arctic and pelagica and lacunosa from the Baltic, has individual cribra. The possibility that var. septentrionalis and var. lacunosa are the resting stages of var. hyperborea and var. pelagica, respectively, is discussed.