Rivularia (cyanobacteria)

Rivularia is a genus of cyanobacteria of the family Rivulariaceae.

Description

Rivularia is found growing on submerged stones, moist rocks, and damp soils near the riverside. It is found in colonies, and the trichomes are radially arranged within a colony, with each trichome wholly or partially surrounded by a gelatinous sheet. The trichomes have a basal heterocyst. Each trichome has a narrow aptic portion which is whip- or tail-like consisting of a row of small cells. Akinetes are absent in Rivularia. The species multiply with the aid of hormogonia and heterocyst.

Species

• Rivularia atra <small>Roth ex Bornet & Flahault, 1886</small>
• Rivularia bullata <small>(Poir) Berkeley ex Bornet & Flahault, 1886</small>
• Rivularia haematites <small>(De Candolle) Bornet & Flahault, 1886</small>
• Rivularia jaoi <small>H.-J.Chu, 1952</small>
• Rivularia nitida <small>C.Agardh ex Bornet & Flahault, 1886</small>
• Rivularia thermalis <small>Y.-Y.Li, 1984</small>

• Rivularia cornudamae <small>Roth, 1797</small>: synonym of Chaetophora lobata <small>Schrank, 1783</small>
• Rivularia elegans <small>Roth, 1802</small>: synonym of Chaetophora elegans <small>(Roth) C.Agardh, 1812</small>
• Rivularia endiviaefolia <small>Roth, 1798</small>: synonym of Chaetophora lobata <small>Schrank, 1783</small>
• Rivularia lloydii <small>P.Crouan & H.Crouan, 1867</small>: synonym of Brachytrichia lloydii <small>(P.Crouan & H.Crouan) P.C.Silva, 1996</small>
• Rivularia multifida <small>Weber & Mohr, 1804</small>: synonym of Nemalion multifidum (<small>F.Weber & D.Mohr) Chauvin, 1842</small>
• Rivularia plana <small>Harvey, 1833</small>: synonym of Isactis plana <small>(Harvey) Thuret ex Bornet & Flahault, 1886</small>
• Rivularia rubra <small>(Hudson) Wahlenberg, 1826</small>: synonym of Nemalion helminthoides <small>(Velley) Batters, 1902</small>
• Rivularia tuberiformis <small>Smith, 1809</small>: synonym of Leathesia marina <small>(Lyngbye) Decaisne, 1842</small>
• Rivularia vermiculata <small>Smith, 1808</small>: synonym of Mesogloia vermiculata <small>(Smith) S.F.Gray, 1821</small>
• Rivularia zosterae <small>Mohr, 1810</small>: synonym of Eudesme virescens <small>(Carmichael ex Berkeley) J.Agardh, 1882</small>

References

Further reading

• Silva, C., P. Basson & R. Moe (1996). Catalogue of the Benthic Marine Algae of the Indian Ocean. Volume 79 of University of California Publications in Botany ().