Cocconeis rouxii was decribed by J.Héribaud & J.Brun from samples collected in mountainous freshwater sources in the Auvergne region, France. Despite being mentioned in earlier publications and classical European floristic books, this species has never been fully explained. Its morphology is poorly known, as it has confusing and sparse citations in the literature, despite being abundant in several samples from the Massif Central. Some inconclusive attempts to investigate the original gatherings during the 1980s, and the exclusion of the taxon in major floristic works, led to the almost complete abandonment of the name. We here detail with light and scanning electron microscopy one population found in the source Bernadette, located near its type locality. The species seems to be quite common in several regions of France with metamorphic geological properties (i.e. crystalline rocks).

球藻由J.Héribaud和J.Brun从法国Auvergne地区山区淡水源中采集的样品中描述。尽管在较早的出版物和欧洲古典植物志书籍中有所提及，但该物种从未得到过充分的解释。尽管在Massif Central的一些样本中有丰富的文献，但它的形态却鲜为人知，因为它在文献中被引人迷惑且稀疏。对1980年代最初的聚会进行调查的一些不确定性尝试，以及将分类单元排除在主要的植物学著作之外，导致几乎完全放弃了该名称。我们在这里用光电子显微镜和扫描电镜详细介绍了源于伯纳黛特的一个种群，位于其类型附近。