膠鬚藻科狀的毛狀體,從底部較寬到尖端較窄逐漸變細。 本屬的模式種是Rivularia haematites (Dc) C. A. Agardh (英语:Carl Adolph Agardh ) 膠鬚藻科包括下列各屬: 分须藻属 Amphithrix Bornet & Flahault, 1886 Ariasmontanoa
水雲目Chordariopsidaceae Kylin, 1940:WoRMS並未有列出下屬的物種及分類; 水雲科 Ectocarpaceae C Agardh (英语:Carl Adolph Agardh ), 1828 Family Mesosporaceae J. Tanaka & Chihara, 1982 多丝藻科 Myrionemataceae
索藻科Mesogloia C.Agardh (英语:Carl Adolph Agardh ), 1817 Mesogloia japonica Mesogloia lanosa P.L.Crouan & H.M.Crouan, 1867 Mesogloia mediterranea J.Agardh Mesogloia
水雲科Epinema P.J.L.Dangeard, 1962 Phaeostroma Kuckuck, 1893 Xanthosiphonia J.Agardh , 1894 異名 Capsicarpella Bory de Saint-Vincent, 1823:今被拼入水雲屬; Waerniella Kylin
瑞典學院院士列表Kellgren, 1786–95 Johan Stenhammar, 1797–99 Claes Fleming, 1799–1831 Carl Adolph Agardh , 1831–59 Fredrik Ferdinand Carlson, 1859–87 Claes Herman Rundgren