Phacus pyrum (Ehrenberg) W.Archer 1871

Monomorphina pyrum (Ehrenberg) Mereschkowsky

Current name: Monomorphina pyrum (Ehrenberg) Mereschkowsky
Bainbridge Island, Washington, USA; pond, 1000x, DIC - 26 April 2008. Karl Bruun (

Publication Details
Phacus pyrum (Ehrenberg) W.Archer 1871: 99

Published in: Archer, W. (1871). In: Anon. Dublin Microscopical Club. pp. 91-104. In: Anon. Proceedings of Societies pp. 91-106. Quarterly Journal of Microscopical Science, London, Series 2 11: 99.

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Type Species
The type species (holotype) of the genus Phacus is Phacus longicauda (Ehrenberg) Dujardin.

Status of Name
This name is currently regarded as a synonym of Monomorphina pyrum (Ehrenberg) Mereschkowsky.

Euglena pyrum Ehrenberg

Type Information
Type locality: Germany: Berlin; (Index Nominum Algarum) Lectotype: fig. V in Ehrenberg: Permanently preserved material of strain ACOI 2778 (cells in resin, for EM); figs 1, a-d and 2, j-l (epitype) Herbariumof the Department of Plant Systematic and Geography at Warsaw University; (Kosmala et al 2007: 177, 178) Notes: The culture from which the epitype was described has been deposited in the Algae Culture Collection of the Department of Botany, University of Coimbra, Portugal, as number ACOI 2778 and in the Culture Collection of Algae at the University of Cologne (CCAC), Germany (Kosmala et al. 2007: 178, 179).

Origin of Species Name
Noun (Latin), pear (Brown 1946).

General Environment
This is a freshwater species.

Created: 11 April 2002 by M.D. Guiry.

Last updated: 16 December 2020

Verification of Data
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Citing AlgaeBase
Cite this record as:
G.M. Guiry in Guiry, M.D. & Guiry, G.M. 16 December 2020. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.; searched on 08 June 2023

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