Ascocyclus Magnus, 1874

Lectotype species: Myrionema orbiculare J.Agardh

Publication details: Magnus, 1874: 73

Currently accepted name for the type species: Ascocyclus orbicularis (J.Agardh) Kjellman

Original publication: Magnus, P. (1875). Die botanischen Ergebnisse der Nordseefahrt vom 21 Juli bis 9 September 1872. Jahresberichte der Kommission zur Wissenschaftlichen Untersuchung der Deutschen Meere in Kiel 2: 59-79, 1 fig. 2 pls.

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Type designated in: Sauvageau, C. (1927). Sur les problèmes du Giraudia. Bulletin de la Station biologique d'Arcachon 24: 1-74.

The most recent alteration to this page was made on 2018-11-12 by .

Taxonomic status: The taxonomic or nomenclatural status (or both) of this entity is in some way unresolved and requires further investigation.

Gender: This genus name is currently treated as masculine.

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.

Nomenclatural note
According to ING, "The material upon which the generic description was based, later named A. magnusii, was originally referred with much doubt to Myrionema orbiculare J. G. Agardh, a species now considered to be congeneric but not conspecific with A. magnusii." A. Athanasiadis (e-mail, 11 November 2018) writes: "Since the Sydney Code (Voss &al. 1981, Art. 10.2-3), the type of a genus is the (type of the cited) name of a species, and not the material used to prepare the generic account. Hence the type of Ascocyclus Magnus is A. orbicularis (= Myrionema orbiculare J.Ag.), the only species name cited by Magnus. Suavageau's (1927) proposal [A. magnusii C. Sauvageau (Bull. Stat. Biol. Arachon 24: 14 adnot. 1927)] requires conservation." - (29 August 2011) - M.D. Guiry

Taxonomic note
"taxonomic treatment of the genus would require a broader taxon sampling. 55. The type species, Ascocyclus magnusii Sauvageau (1927), is presently considered as a Myrionema species, and most of the species were transferred in Myrionema or Chilioniema genera, but 3 are still in need of reinvestigation: A. dichotomus Ohta (1973), A. hypneae Børgesen (1920), A. stenonemus Takamatsu in Noda (1987)." (Silberfeld, Rousseau & Reviers 2014: 132, footnote). - (20 June 2014) - M.D. Guiry

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Linking to this page: https://www.algaebase.org/search/genus/detail/?genus_id=34847

Citing AlgaeBase
Cite this record as:
Guiry, M.D. & Guiry, G.M. 12 November 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 18 May 2025