Ptilothamnion richardsii Skuja 1944

Publication Details
Ptilothamnion richardsii Skuja 1944: 43, 44, pl. VIII [with 6 figs]

Published in: Skuja, H. (1944). Untersuchungen über die Rhodophyceen des Süsswassers (VII-XII). Acta Horti Bot. Univ. Lat. 14: 3-64.

Type Species
The type species (holotype) of the genus Ptilothamnion is Ptilothamnion pluma (Dillwyn) Thuret.

Status of Name
This name is currently regarded as a synonym of Chantransia richardsii (Skuja) Vis, Entwisle, J.A.West & Ott.

Source of Synonymy
Vis, M.L., Entwisle, T.J., West, J.A. & Ott, F.D. (2006). Ptilothamnion richardsii (Rhodophyta) is a chantransia stage of Batrachospermum. European Journal of Phycology 41(1): 125-130.

Type Information
Type locality: River Essequibo, Guyana; (Vis & al. 2006: 125)

General Environment
This is a freshwater species.

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

Last updated: 15 September 2007

Verification of Data
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Unspecified note
Two specimens of Ptilothamnion richardsii from Australia were examined by Vis et al. (2006), partial rbcL gene sequence data were obtained and the specimens were determined to be Batrachospermum antipodites, differing from that taxon by only 15bp (1.2%). Two specimens from French Guiana were shown to be within the Batrachospermum section Contorta clade. They consider it useful to continue to recognize entities with particular morphological characters and propose the form taxa Chantransia richardsii, C. macrospora and C. pygmaea. - (13 September 2006) - G.M. Guiry

Linking to this page: https://www.algaebase.org/search/species/detail/?species_id=32471

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 15 September 2007. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 07 June 2025