''Jania'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...

of red seaweeds with hard, calcareous, branching skeletons in the

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

Corallinaceae The Corallinaceae are one of the two extant Coralline families of red algae; they are differentiated from the morphologically similar Sporolithaceae by their formation of grouped sporangial chambers, clustered into sori. The Corallinoideae i ...

. Members of the genus are found in sheltered reef habitats, often in crevices or other shaded areas.Segmented algae (''Jania spp.'')
Marine Species Identification Portal. Retrieved 2011-12-31. The genus name of ''Jania'' is derived from the Greek

water nymph In Greek mythology, the naiads (; grc-gre, ναϊάδες, naïádes) are a type of female spirit, or nymph, presiding over fountains, wells, springs, streams, brooks and other bodies of fresh water. They are distinct from river gods, who ...

called Ianeira (or ''Janeria''). The genus was circumscribed by

Jean Vincent Félix Lamouroux Jean Vincent Félix Lamouroux (3 May 1779 – 26 March 1825) was a French biologist and naturalist, noted for his seminal work with algae. Biography Lamouroux was born in Agen in the Aquitaine of southwestern France, the son of Claude Lamouroux, ...

in Nouv. Bull. Sci. Soc. Philom. Paris vol.3 on page 186 in 1812.

Description

Members of the genus are dichotomously branched and grow in wide, tangled clumps. The branches are composed of stiff, cylindrical segments and can bend at the joints. The colour is generally red or pink and the joints are white.

Species

The World Register of Marine Species list the following: *'' Jania acutiloba'' (Decaisne) J.H. Kim *'' Jania adhaerens'' J.V.Lamouroux, 1816 *'' Jania affinis'' Harvey, 1855 *'' Jania arborescens'' (Yendo) Yendo, 1905 *'' Jania articulata'' N'Yuert & Payri, 2009 *'' Jania capillacea'' Harvey, 1853 *'' Jania crassa'' J.V.Lamouroux, 1821 *'' Jania cristata'' (Linnaeus) Endlicher, 1843 *'' Jania cubensis'' Montagne ex Kützing, 1849 *'' Jania cultrata'' (Harvey) J.H. Kim *'' Jania decussatodichotoma'' (Yendo) Yendo, 1905 *'' Jania fastigiata'' Harvey, 1849 *'' Jania intermedia'' (Kützing) P.C.Silva, 1996 *'' Jania iyengarii'' E.Ganesan, 1966 *'' Jania lobata'' Zanardini, 1858 *'' Jania longiarthra'' E.Y.Dawson, 1953 *'' Jania longifurca'' Zanardini, 1844 *'' Jania micrarthrodia'' J.V.Lamouroux, 1816 *'' Jania minuta'' Johansen & Womersley, 1994 *'' Jania nipponica'' (Yendo) Yendo, 1905 *'' Jania novae-zelandiae'' Harvey, 1855 *'' Jania pacifica'' Areschoug, 1852 *'' Jania parva'' Johansen & Womersley, 1994 *'' Jania prolifera'' A.B. Joly, 1966 *'' Jania pulchella'' (Harvey) Johansen & Womersley, 1994 *'' Jania pumila'' J.V.Lamouroux, 1816 *'' Jania pusilla'' (Sonder) Yendo, 1905 *'' Jania pygmaea'' J.V.Lamouroux, 1816 *'' Jania radiata'' Yendo, 1905 *'' Jania rosea'' (Lamarck) Decaisne, 1842 *'' Jania rubens'' (Linnaeus) J.V.Lamouroux, 1816 *'' Jania rubrens'' (L.) Lamour *'' Jania sagittata'' (J.V.Lamouroux) Blainville, 1834 *'' Jania santae-marthae'' Schnetter *'' Jania spectabile'' (Harvey ex Grunow) *'' Jania squamata'' (Linnaeus) J.H. Kim, *'' Jania subpinnata'' E.Y.Dawson, 1953 *'' Jania subulata'' (Ellis & Solander) Sonder, 1848 *'' Jania tenella'' (Kützing) Grunow, 1874 *'' Jania ungulata'' (Yendo) Yendo, 1905 *'' Jania verrucosa'' J.V.Lamouroux, 1816 *'' Jania yenoshimensis'' (Yendo) Yendo, 1905

References

{{Taxonbar, from=Q10305245 Corallinaceae Red algae genera