162,430 species and infraspecific names are in the database, 22,763 images, 64,016 bibliographic items, 475,067 distributional records.

Placoneis exigua (W.Gregory) Mereschkovsky 1903

Publication details
Placoneis exigua (W.Gregory) Mereschkovsky 1903: 13, pl. 1: fig. 17

Published in: Mereschkowsky, C. (1903). Über Placoneis, ein neues Diatomeen-Genus. Beihefte zum Botanischen Centralblatt 15(1): 1-30, pl. 1.

Type species
The type species (lectotype) of the genus Placoneis is Placoneis gastrum (Ehrenberg) Mereschkowsky.

Status of name
This name is of an entity that is currently accepted taxonomically.

Basionym
Pinnularia exigua W.Gregory

Origin of species name
Adjective A (Latin), small, short, poor, scanty (Brown 1946).

Homotypic Synonym(s)
Pinnularia exigua W.Gregory 1854
Navicula gastrum var. exigua (W.Gregory) Grunow 1880
Navicula exigua (W.Gregory) Grunow 1880
Placoneis gastrum var. exigua (Gregory) Mereschkowsky 1903
Placoneis elginensis f. exigua (Gregory) Bukhtiyarova 1995

General environment
This is a freshwater species.

Detailed distribution with sources (Click to Load)

Key references
Eberle, M.E. (2008). Recent diatoms reported from the central United States: register of taxa and synonyms. Hays, Kansas: Department of Biological Sciences, Fort Hays State University. Latest electronic version: 5 December 2008.

John, J. (2020). Diatoms from arid Australia: taxonomy and biogeography. The diatom flora of Australia Volume 3. pp. [1]-578, 341 figs. Schmitten – Oberreifenberg: Koeltz Botanical Books.

Li Jiaying & Qi Yuzao [Li, J.Y. & Qi, Y.Z.] (2018). Flora algarum sinicarum aquae dulcis Tomus XXIII Bacillariophyta Naviculaceae (III). pp. [1-8], i-xxiii, 1-214, pls I-XLVIII. Beijing: Science Press.

Plinski, M. & Witkowski, A. (2020). Diatoms from the Gulf of Gdansk and surrounding waters (the southern Baltic Sea). pp. [1]-442, incl. 31 SEM pls, 16 photo pls. Gdansk: Gdansk University Press.

Created: 11 April 2002 by M.D. Guiry

Verified by: 29 October 2020 by M.D. Guiry

Accesses: This record has been accessed by users 690 times since it was created.

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Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 01 August 2021.

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