Pterothamnion polyacanthum (Kützing) Nägeli 1862
Publication Details
Pterothamnion polyacanthum (Kützing) Nägeli 1862: 376, 414
Published in: Nägeli, C. (1862 '1861'). Beiträge zur morphologie und systematik der Ceramiaceae. Sitzungsberichte der Königlichen Bayerischen Akademie der Wissenschaften zu München 1861(2): 297-415, 30 figs, 1 pl.
Request PDFType Species
The type species (holotype) of the genus Pterothamnion is Pterothamnion plumula (J.Ellis) Nägeli.
Status of Name
This name is of an entity that is currently accepted taxonomically.
Basionym
Callithamnion polyacanthum Kützing
Type Information
Type locality: "Ad littora Britanniae" [probably Kilkee, Co. Clare, Ireland]; (Athanasiadis 1996: 58) Lectotype: (Athanasiadis 1996: 58) Notes: The type could not be located at L although there is evidence that it was examined by O. Sundene and P.S. Dixon; according to Sundene's note the missing type was collected at Kilkee, Ireland. Lectotype: Athanasiadis (1996: 59) selected Kützing’s illustration (1861, xi, pl. 83: fig. II), probably collected by W.H. Harvey (Guiry in Athanasiadis).
General Environment
This is a marine species.
Created: 04 January 1998 by M.D. Guiry.
Last updated: 16 November 2023
Verification of Data
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Nomenclatural note
"Callithamnion polyacanthum, basionym of this species, was described by Kützing (1849: 648) from Kilkee (Ireland) and later illustrated in his Tabulae Phycologicae (Kützing, 1861: pl. 83/II). In the Mediterranean Sea, it was listed by Hauck (1882: 73) among the synonyms of Antithamnion plumula var. crispum [= Pt. crispum], by Ardissone (1883: 79) among the synonyms of Ca. plumula s.l. [because Ardissone (op. cit.) listed among the synonyms of Ca. plumula also other species like Ceramium crispum and Callithamnion bebbii now considered as distinct taxa each other], by De Toni (1903: 1401) and Preda (1908: 124) among the synonyms of Antithamnion plumula [= Pt. plumula s.l.]. Afterwards, it was no more cited until Athanasiadis (1996: 58) considered Pt. polyacanthum a distinct species and lectotypified its basionym Ca. polyacanthum with the above illustration by Kützing, 1861: pl. 83/II, since original material was lacking. Moreover, Athanasiadis (op. cit.: 61), based on both literature data and the study of some herbarium specimens, acknowledged the occurrence of Pt. polyacanthum from Banyuls sur Mer (France), the island of Kephallinia (Greece) and Piran (Croatia). It should be noted that, in addition to the aforementioned records, the presence of this species in the Adriatic Sea is confirmed based on the review of some photos (never published) (see Table 43, photos 4 and 5) of a specimen collected at Pugnochiuso (Promontory of Gargano, Italy), erroneously reported by Cecere et al. (2000: 342) as P. crispum." (Cormaci & al. 2023: 289). - (16 November 2023) - M.D. Guiry
Linking to this page: https://www.algaebase.org/search/species/detail/?species_id=2271
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 16 November 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 29 May 2025
