Stephanoptera P.-A. Dangeard, 1910

Holotype species: Stephanoptera fabreae P.A.Dangeard

Description: Unicellular,biflagellate, uninucleate alga without(?) cellulosic cell walls. In frontview, cells 18-22 um wide and 30-35 um long, principally pyriform withbroadened apices and four wing-like longitudinal periplast ridges.Chloroplast single and bell-shaped with one pyrenoid.Asexualreproduction by longitudinal division of an actively motile cell.Dangeard reported that, unlike most other flagellates, bipartition begins atthe anterior end of the cell and proceeds posteriorly. Daughter cellsusually of equal size. Both uninucleate and binucleate cystsreported. Sexual reproduction unknown.Unicellular,biflagellate, uninucleate alga without(?) cellulosic cell walls. In frontview, cells 18-22 um wide and 30-35 um long, principally pyriform withbroadened apices and four wing-like longitudinal periplast ridges.Chloroplast single and bell-shaped with one pyrenoid.Asexualreproduction by longitudinal division of an actively motile cell.Dangeard reported that, unlike most other flagellates, bipartition begins atthe anterior end of the cell and proceeds posteriorly. Daughter cellsusually of equal size. Both uninucleate and binucleate cystsreported. Sexual reproduction unknown.

Information contributed by: G.E. Dillard. The most recent alteration to this page was made on 2010-05-13 by M.D. Guiry.

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

Comments: Stephanoptera known from the marine environment only from environsof Concarneau, France

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=46593

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 13 May 2010. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 24 April 2024