159,722 species and infraspecific names are in the database, 22,560 images, 62,397 bibliographic items, 465,583 distributional records.

Characiellopsis M.O.P.Iyengar, 1975

Empire Eukaryota
Kingdom Plantae
Subkingdom Viridiplantae
Infrakingdom Chlorophyta infrakingdom
Phylum Chlorophyta
Subphylum Chlorophytina
Class Chlorophyceae
Order Sphaeropleales
Family Characiaceae

Holotype species: Characiochloris anophelesi M.O.P.Iyengar

Taxonomic status: currently recognized as a distinct genus.

Description: Solitary, ovate to clavate cells, attached to substratum with small mucilage pad. Cells 15-70 x 4-33 &m, with broadly rounded apex, and narrowing to short stipitate base. Cell walls smooth. Cells uninucleate; stellate chloroplast single in young cells, becoming multiple (up to 4) with age, each chloroplast with central pyrenoid with conspicuous starch sheath. Asexual reproduction by biflagellate, naked zoospores, or aplanospores; many spores produced per sporangium and released through specialized structure at cell apex. Zoospores in C. anophelesii released in common membrane after initial motile period in sporangium; spores dispersed after disintegration of membrane. Zoospores with parietal, non-stellate chloroplast. Sexual reproduction unknown. Characiellopsis epiphytic on algae or mosses (C. skujae) or epizoic on mosquito larvae (C. anophelesii) in freshwater; species reported only from Europe and India respectively. Genus distinguished from Characium based on presence of stellate chloroplast; genus assigned to subfamily Characioideae. Species distinguished based on chloroplast number and host identity.

Information contributed by: D. Garbary and T. Kalina. The most recent alteration to this page was made on 17 Sep 2004 by Robert Wilkes.

Numbers of names and species: There are 2 species names in the database at present, of which 2 have been flagged as accepted taxonomically on the basis of the listed literature under the species name. In some instances, opinions on taxonomic validity differ from author to author and users are encouraged to form their own opinion. AlgaeBase is a work in progress and should not be regarded as a definitive source only as a guide to the literature..

Names: ('C' indicates a name that is accepted taxonomically; 'S' a homotypic or heterotypic synonym; 'U' indicates a name of uncertain taxonomic status, but which has been subjected to some verification nomenclaturally; 'P' indicates a preliminary AlgaeBase entry that has not been subjected to any kind of verification. For more information on a species click on it to activate a link to the Species database):

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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.

Created: 17 September 2004 by Robert Wilkes

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Please cite this record as:
Guiry, M.D. & Guiry, G.M. 2020. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 05 December 2020.

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