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首页> 外文期刊>植物研究雑誌 >A New Brackish Water Diatom, Achnanthes secretitaeniata, from Japan
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A New Brackish Water Diatom, Achnanthes secretitaeniata, from Japan

机译:日本的一种新的微咸水硅藻,Achnanthes secretitaeniata

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摘要

A new monoraphid diatom, Achnanthes secretitaeniata, is decribed from brackish water in the coast, Yamada-machi, Shimohei-gun, Iwate Pref., Japan. Cell shape is more or less linear with rounded extremities. Rapheless sternum grows close to the marginof the araphid valve. Araphid valve margin is well developed, but does not form marginal ridge as in A. yaquinensis and A. subconstricta. Valvocopulae and copulae are open-ended at both poles of valve. This species is closely related to A. brevipes C. Agardh var. intermedia (Kutz.) Cleve, but, they can be easily distinguished from each other by the position of rapheless sternum and the structure of valve margin on their araphid valves.
机译:日本岩手县下平平市山田町沿岸咸淡水描述了一种新的独栖硅藻,Achnanthes secretitaeniata。细胞的形状或多或少是线性的,具有圆形的末端。无裂纹的胸骨生长在靠近阿拉福瓣的边缘。 Araphid瓣缘发达,但不像yaquinensis和subconstricta那样形成边缘脊。 Valvocopulae和copulae在阀门的两极都是开放式的。该物种与短小曲霉C. Agardh var。 intermedia(Kutz。)Cleve,但是,可以通过无节骨的胸骨的位置和其aphiphid阀上的阀边距结构来轻松地区分它们。

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