Herponema J.Agardh, 1882
Lectotype species: Herponema velutinum (Greville) J.Agardh
Original publication: Agardh, J.G. (1882). Till algernes systematik. Nya bidrag. (Andra afdelningen.). Lunds Universitets Års-Skrift, Afdelningen for Mathematik och Naturvetenskap 17(4): 1-134, 3 plates.
Request PDFType designated in: Hamel, G. (1939). Sur la classification des Ectocarpales. Botaniska Notiser 1939: 65-70.
Description: The basal part of this genus is endophytic, branched filaments. Near the surface of the host, the cells become shorter and vigorous branching takes place. This results in free filaments which form a felt-like cover on the host. The free filaments are unbranched or provided with few hypomeristematic branches. Unilocular and plurilocular sporangia occur terminally on these filaments. A meristematic zone is distinct in the free filaments and their cells contain several parietal, disc-shaped chloroplasts each with a pyrenoid. The length of the apical cells in the free filaments often extended and form a pseudohair.
Information contributed by: P. M. Pedersen. The most recent alteration to this page was made on 2021-02-23 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: Silberfeld, T., Rousseau, F. & Reviers, B. de (2014). An updated classification of brown algae (Ochrophyta, Phaeophyceae). Cryptogamie Algologie 35(2): 117-156, 1 fig., 1 table.
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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,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=32862
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 23 February 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 22 November 2024
