Petrodictyon gemma (Ehrenberg) D.G.Mann 1990

Publication Details
Petrodictyon gemma (Ehrenberg) D.G.Mann 1990: 638, 674

Published in: Round, F.E., Crawford, R.M. & Mann, D.G. (1990). The diatoms. Biology and morphology of the genera. pp. [i-ix], 1-747. Cambridge: Cambridge University Press.

Type Species
This is the type species (holotype) of the genus Petrodictyon.

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

Basionym
Navicula gemma Ehrenberg

Type Information
Lectotype locality: "An der Elbmündung bei Cuxhaven in der Nordsee" [North Sea, Germany]; (Jahn & Kusber 2004: 585) Notes: Lectotype (designated by Jahn & Kusber 2004; 585): "Specimen of Taxonomic preparations No. 540032-3 in BHUPM (Fig. 41). The lectotype specimen corresponds to the valve on the left hand side of drawing sheet No. 1147 in BHUPM, except for the bacteria, which Ehrenberg might have interpreted as cilia (Fig. 40)."

Origin of Species Name
Noun (Latin), bud, eye (of a plant), jewel, precious stone (Brown 1946).

General Environment
This is a marine species.

Created: 23 April 2002 by M.D. Guiry.

Last updated: 30 October 2020

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

Nomenclatural note
According to INA, this names is invalid as the basionym cited as Surirella gemma (INA); name was published as Navicula (Surirella) gemma. Jahn & Kusber (2004: 585) comment: "Navicula gemma Ehrenb. was classified originally within Surirella, an unranked infrageneric name within Navicula. Petrodictyon gemma was based on Navicula gemma sub "Surirella gemma Ehrenb. 1839. Abh. Akad. Wiss. Berlin 1839: 156". Although cited wrongly by Mann (in Round & al. 1990), the basionym is indicated by citing the protologue." - (09 November 2016) - G.M. Guiry

Linking to this page: https://www.algaebase.org/search/species/detail/?species_id=39313

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 30 October 2020. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 17 April 2025

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