Rivulariaceae

The Rivulariaceae are a family of cyanobacteria within the Nostocales in which the filaments (trichomes) are tapered from wider at the base to narrower at the tip.^[2]

The type species is Rivularia haematites (Dc) C. A. Agardh.^[3]

Genera

As of 14 September 2021, WoRMS listed the following genera under Rivulariaceae^[2]:

• Amphithrix Bornet & Flahault, 1886
• Ariasmontanoa Molinari & Guiry, 2021
• Calothrix C.Agardh ex Bornet & Flahault, 1886
• Dichothrix Zanardini ex Bornet & Flahault, 1886
• Gaillardotella Bory de Saint-Vincent ex Kuntze, 1898
• Gardnerula G.De Toni, 1936
• Gloiotrichia J.Agardh, 1842
• Heteractis A.P.de Candolle, 1838
• Isactis Thuret ex Bornet & Flahault, 1886
• Macrochaete Berrendero, J.R.Johansen & Kastovsky, 2016
• Mastigonema H.Schwabe ex A.B.Frank, 1886
• Montanoa P.González, 1947
• Nunduva L.González-Resendiz, H.León-Tejera & J.R.Johansen, 2018
• Phyllonema D.O.Alvarenga, J.Rigonato, L.H.Z.Branco, I.S.Melo & M.F.Fiore, 2016
• Primorivularia A.-S.Edhorn, 1973
• Rivularia C.Agardh ex Bornet & Flahault, 1886
• Sacconema Borzì ex Bornet & Flahault, 1886: contains two species, one freshwater and another terrestrial;
• Tildenia Kossinskaja, 1926
• Zonotrichites J.G.Bornemann, 1886

As of 15 September 2021，AlgaeBase also includes the following genera under Rivulariaceae:

• Microchaete Thuret ex Bornet & Flahault 1886:^[4] is considered by WoRMS to remain under the subfamily of Microchaetoideae of family Microchaetaceae.^[5]

References