156,039 species and infraspecific names are in the database, 21,990 images, 60,314 bibliographic items, 442,784 distributional records.

Characidiopsis Pascher, 1938

Classification:
Empire Eukaryota
Kingdom Chromista
Phylum Ochrophyta
Class Xanthophyceae
Order Mischococcales
Family Characiopsidaceae

Lectotype species: Characidiopsis acuta Pascher

Original publication and holotype designation: Pascher, A. (1938). Heterokonten. In: Kryptogamen-Flora von Deutschland, Österreich und der Schweiz. (Rabenhorst, L. Eds) Vol. 11, Teil 5, pp. 641-832. Leipzig: Akademische Verlagsgesellschaft.

Taxonomic status: currently recognized as a distinct genus.

Most recent taxonomic treatment adopted: Ott, D.W. & Oldham-Ott, C.K. (2003). Eustigmatophyte, Raphidophyte, And Tribophyte. In: Freshwater Algae of North America, Ecology and Classification. (Wehr, J.D. & Sheath, R.G. Eds), pp. 423-470. San Diego: Academic Press.

Description: Solitary cells globular, ovoid or fusiform with smooth cell walls. Cells often elevated with a more or less elongated stipe attached to substrate by a mucilaginous disk. Chloroplasts one or many and parietal. Contractile vacuoles and stigma always present. Cells up to 30 _m long; style up to 15 _m long. Asexual reproduction by formation of zoospores with two unequal flagella. Characidiopsis epizoic on copepods (Cyclops O. F. Mueller) or epiphytic on algae (Anabaena, Spirogyra) or aquatic macrophytes (Lemma L.) or floating detritus; known only from Europe. Species distinguished based on cell morphology and dimensions.

Information contributed by: I. M. Franceschini. The most recent alteration to this page was made on 13 Oct 2016 by M.D. Guiry.

Numbers of names and species: There are 9 species names in the database at present, as well as 1 infraspecific names. Of the species names, 6 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):

Click here to also show infraspecific names in the list below.

Verification of data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.

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.

Created: 06 May 2003 by Andy Taylor

Verified by: 13 October 2016 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=46482

Citing AlgaeBase
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 22 August 2019.

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