Erythrophyllum J.Agardh, 1872

Holotype species: Erythrophyllum delesserioides J.Agardh

Original publication and holotype designation: Agardh, J.G. (1872). Bidrag till Florideernes systematik. Lunds Universitets Års-Skrift, Afdelningen for Mathematik och Naturvetenskap 8(6): 1-60.

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Description: Lanceolate, simple or divided, with a terete stipe and discoid holdfast. Midrib distinct, percurrent, with pinnate branches, simple or forked, extending into blade. Medulla filamentous. Cortex of isodiametric cells, progressively smaller toward cuticle. Reproductive structures occurring in papillae on surface of blade. A single 3-celled carpogonial branch borne on each supporting cell together with one or two subsidiary cells. Fusion cell involving supporting cell and subsidiary cells only, producing nonseptate connecting filaments that contact separate auxiliary cells, also bearing subsidiary cells. Groups of carposporangia separated by sterile filaments. Spermatangia undescribed. Tetrasporophyte isomorphic. Tetrasporangia zonate, scattered in cortex. Lanceolate, simple or divided, with a terete stipe and discoid holdfast. Midrib distinct, percurrent, with pinnate branches, simple or forked, extending into blade. Medulla filamentous. Cortex of isodiametric cells, progressively smaller toward cuticle. Reproductive structures occurring in papillae on surface of blade. A single 3-celled carpogonial branch borne on each supporting cell together with one or two subsidiary cells. Fusion cell involving supporting cell and subsidiary cells only, producing nonseptate connecting filaments that contact separate auxiliary cells, also bearing subsidiary cells. Groups of carposporangia separated by sterile filaments. Spermatangia undescribed. Tetrasporophyte isomorphic. Tetrasporangia zonate, scattered in cortex.

Information contributed by: S.C. Lindstrom. The most recent alteration to this page was made on 2019-05-27 by M.D. Guiry.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

Gender: This genus name is currently treated as neuter.

Most recent taxonomic treatment adopted: Saunders, G.W., Huisman, J.M., Vergés, A., Kraft, G.T. & Le Gall, L. (2017). Phylogenetic analyses support recognition of ten new genera, ten new species and 16 new combinations in the family Kallymeniaceae (Gigartinales, Rhodophyta). Cryptogamie Algologie 38(2): 79-132, 126 figs.

Comments: Low intertidal in areas exposed to heavy surf. Known only from the northeast Pacific Ocean: eastern Gulf of Alaska to central California.

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Contributors
Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in CD format. These AlgaeBase descriptions are now being continually updated, and each current contributor is identified above. The PSA and AlgaeBase warmly acknowledge the generosity of all past and present contributors and particularly the work of Dr Parker.

Descriptions of chrysophyte genera were subsequently published in J. Kristiansen & H.R. Preisig (eds.). 2001. Encyclopedia of Chrysophyte Genera. Bibliotheca Phycologica 110: 1-260.

Linking to this page: https://www.algaebase.org/search/genus/detail/?genus_id=37038

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 27 May 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 21 November 2024