C. Riaux-Gobin, A. Witkowski, A. Igersheim, C. Lobban, Adil Y. AL-HANDAL, P. Compère
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引用次数: 10
摘要
juandenovense Planothidium sp.nov.（Bacillarophyta）描述自Juan de Nova I.（莫桑比克海峡）、Rodrigues I.（马斯卡群岛）和关岛（北马里亚纳群岛，太平洋）的海洋热带环境。这个小而相对罕见的分类单元在胸骨瓣（SV）上有短的多节纹，钩状中缝瓣（RV）中缝末端，没有SV腔或蹄形区域。该分类单元与圆形和Bukht的美味扁藻（Planothidium delicatulum，Kutz）有相似之处。和Planothidium septentrionale（Ostrup）Round et Bukht。ex Rumrich等人，但也有差异：例如，相对狭窄的菱形SV胸骨，乳晕空洞，具有残余的放射状结构和不间断的边缘SV隆起的嵴或“嵴边缘”。将P.juandenovense sp.nov.与其他一些具有短SV条纹的Achnanthales进行了比较。Quarnernensis var.lanceolata Jurilj和Planothidium quarnerense f.rhombica（Giffen）梳。nov.可能接近我们的新分类单元。
Planothidium juandenovense sp. nov. (Bacillariophyta) from Juan de Nova (Scattered Islands, Mozambique Channel) and other tropical environments: A new addition to the Planothidium delicatulum complex
Planothidium juandenovense sp. nov. (Bacillariophyta) is described from the marine tropical environments of Juan de Nova I. (Mozambique Channel), Rodrigues I. (Mascarene Archipelago) and from Guam (Northern Mariana Is., Pacific). This small and relatively rare taxon has short multiseriate striae on the sternum valve (SV), hooked raphe valve (RV) terminal raphe endings and no SV cavum or hoof-shaped area. This taxon has similarities with Planothidium delicatulum (Kutz.) Round et Bukht. and Planothidium septentrionale (Ostrup) Round et Bukht. ex Rumrich et al., but also differences: e.g. a relatively narrow and rhombic SV sternum, void of areolae, with vestigial radiate structures and an uninterrupted marginal SV elevated crest or 'crista marginalis'. P. juandenovense sp. nov. is compared to some other Achnanthales with short SV striae. Cocconeis quarnerensis var. lanceolata Jurilj and Planothidium quarnerense f. rhombica (Giffen) comb. nov. may be close to our new taxon.
期刊介绍：
Fottea is a journal of Czech Phycological Society (formerly bulletin Czech Phycology). Fottea publishes papers on all aspects of the ecology, physiology, biochemistry, cell biology, molecular biology, systematics and uses of algae (including cyanobacteria)
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