Dictyota dichotoma var. implexa (Desfontaines) S.F.Gray 1821

Current name: Dictyota implexa (Desfontaines) J.V.Lamouroux
speciman in tidepool, May, Italy (Tyrrhenian, Maratea, PZ) - 28 May 2025. Luigi Campagna (golfopolikayak@yahoo.com)

Publication Details
Dictyota dichotoma var. implexa (Desfontaines) S.F.Gray 1821: 341

Published in: Gray, S.F. (1821). A natural arrangement of British plants, according to their relations to each other, as pointed out by Jussieu, De Candolle, Brown, &c. including those cultivated for use; with an introduction to botany, in which the terms newly introduced are explained; illustrated by figures. pp. vol. 1: [i]-xxviii, [1]- 824, pls I-XXI plates. London: Printed for Baldwin, Cradock & Joy, Paternoster-Row.

Request PDF

Publication date: 1 Nov. 1821

Type Species
The type species (holotype) of the genus Dictyota is Dictyota dichotoma (Hudson) J.V.Lamouroux.

Status of Name
This name is currently regarded as a synonym of Dictyota implexa (Desfontaines) J.V.Lamouroux.

Source of Synonymy
De Clerck, O. (2003). The genus Dictyota in the Indian Ocean. Opera Botanica Belgica 13: 1-205, 54 figs, 12 tables.

Basionym
Fucus implexus Desfontaines

Type Information
Type locality: Habitat in mare mediterraneo [Mediterranean Sea]; (Desfontaines 1799: 423) Holotype: PC; 0146187 (Tronholm et al. 2010: 1313, fig. 8A) Notes: Tronholm et al. (2010: 1313) select GENT FS 338 as epitype (fig. 8B) as epitype of Dictyota implexa (Desfontaines) Lamouroux.

Origin of Species Name
Adjective (Latin), dichotomous, having divisions always in pairs (Stearn 1983).

General Environment
This is a marine species.

Created: 02 December 1998 by M.D. Guiry.

Last updated: 02 February 2024

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

Nomenclatural notes
Also proposed by Vinassa (1891: 21). - (02 February 2024) - E.A. Molinari Novoa
De Clerck (2003) notes that this combination is often erroneously attributed to J. Agardh. - (11 May 2006) - G.M. Guiry

Taxonomic note
Synonymy (De Clerck (2003)) follows Papenfuss (1944: 338-339). - (11 May 2006) - G.M. Guiry

Linking to this page: https://www.algaebase.org/search/species/detail/?species_id=13935

Citing AlgaeBase
Cite this record as:
E.A. Molinari Novoa in Guiry, M.D. & Guiry, G.M. 02 February 2024. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 09 June 2025