162,343 species and infraspecific names are in the database, 22,760 images, 63,965 bibliographic items, 474,946 distributional records.

Placoneis placentula (Ehrenberg) Mereschkowsky 1903

Publication details
Placoneis placentula (Ehrenberg) Mereschkowsky 1903: 24

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 currently regarded as a synonym of Paraplaconeis placentula (Ehrenberg) Kulikovskiy & Lange-Bertalot

Basionym
Pinnularia placentula Ehrenberg

Type information
Type locality: Vera Cruz, Mexico (Jahn 2004: 232). Lectotype: BM 93093 (Lilliesleaf Pond) (epitype) seaweeds and sediments from the coast of the ocean. BHUPM fig. 19 on Ehrenberg's drawing sheet No. 2062 (Jahn 2004: 232, fig. 1).

Homotypic Synonym(s)
Navicula gastrum var. placentula (Ehrenberg) van Heurck 1885
Schizonema placentula (Ehrenberg) Kuntze 1898

Nomenclatural notes
Combination apparently also introduced by Heinzerling (1908, not seen). - (19 May 2016) - M.D. Guiry

General environment
This is a freshwater species.

Detailed distribution with sources (Click to Load)

Source of current name
Kulikovskiy, M.S., Lange-Bertalot, H., Metzeltin, D. & Witkowski, A. (2012). Lake Baikal: Hotspot of endemic diatoms I. Iconographia Diatomologica 23: 1-607, incl. 156 pls.

Key references
Heinzerling, O. (1908). Der Bau der Diatomeenzelle mit besonderer Beruchsichtigung der ergastischen Gebilde und der Beziegung des Baues zur Systematic. Bibliotheca Botanica. Stuttgart 15(69): 88, 3 pl.

Jahn, R. (2004). Discovery of the type specimen of Pinnularia gastrum Ehrenberg, the type species of the genus Placoneis Mereschkowsky. Diatom Research 19(2): 229-234.

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: 24 August 2020 by M.D. Guiry

Accesses: This record has been accessed by users 966 times since it was created.

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

References
(Please note: only references with the binomials in the title are included. The information is from the Literature database.)

Lange-Bertalot, H. & Wojtal, A.Z. (2014). Diversity in species complexes of Placoneis clementis (Grunow) Cox and Paraplaconeis placentula (Ehrenberg) Kulikovskiy, Lange-Bertalot & Metzeltin. Beihefte zur Nova Hedwigia 143: 403-420, 82 fig.

Linking to this page: http://www.algaebase.org/search/species/detail/?species_id=34260

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 24 July 2021.

SITE © 1996 - 2021 M.D. Guiry. All rights reserved.

Website Design : 249 Design Studio