153,615 species and infraspecific names are in the database, 20,981 images, 59,407 bibliographic items, 412,628 distributional records.

Fredericqia deveauniensis Maggs, L.Le Gall, Mineur, Provan & G.W.Saunders

Publication details
Fredericqia deveauniensis Maggs, L.Le Gall, Mineur, Provan & G.W.Saunders 2013: 285, figs 1-25

Published in: Maggs, C.A., Le Gall, L., Mineur, F., Provan, J. & Saunders, G.W. (2013). Fredericqia deveauniensis, gen. et sp. nov. (Phyllophoraceae, Rhodophyta), a new cryptogenic species. Cryptogamie Algologie 34: 273-296.
 Download PDF

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

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

Eponomy
Named after Louis Deveau, the founder of Acadian Seaplants Ltd, Nova Scotia, where this species has been in cultivation since 1988,...

Synonym(s)
No synonyms are currently included in AlgaeBase.

General environment
This is a marine species.

Description
Extensive basal holdfasts up to 0.3 mm thick and 200 mm in diameter, consisting of several layers of small coalescent cells 5-11 µm in diameter, separated by horizontal discontinuities, and with an upper layer of looser vertical filaments; holdfasts giving rise to numerous erect, compressed, branched gametophytic blades 1-5 mm broad, up to 70 mm in length, with pseudoparenchymatous medulla, subcortex and 2-3-celled cortex; all gametophytes female, spermatangia unknown. Procarps consisting of large auxiliary cell and 3-celled carpogonial branch with sterile lateral cell on basal cell. Cystocarps apomictic, auxiliary cells forming secondary pit connections to neighbouring subcortical and medullary cells, developing radial protuberances that grow into gonimoblast filaments. Mature cystocarps protruding equally on either side of the blade, with multiple carpostomes through the thickened cortex. Tetrasporangial and bisporangial crusts extensive, to 300 mm, consisting of erect filaments and coalescent tissue beneath the original basal layer, forming numerous superficial sori with tetrasporangia or obliquely divided bisporangia, spore release resulting in irregular surface pits; life histories apomictic.

Type information
Holotype locality: "Ballyhenry Island, County Down, Northern Ireland (54.392536° N; 5.57712° W)" (Maggs et al. 2013: 285). Holotype: C.A. Maggs; 11 Nov. 1988; BM 00103312. (Maggs et al. 2013: 285). Notes: Isotypes: PC0144058; UNB.

Detailed distribution with sources (Click to Load)

Key references
Athanasiadis, A. (2016). Phycologia Europaea Rhodophyta Vol. I. pp. [i]-xxxxviii, 1-762. Thessaloniki: Published and distributed by the author.

Mathieson, A.C. & Dawes, C.J. (2017). Seaweeds of the Northwest Atlantic. pp. [i]-x, 1-798, CIX pls. Amherst & Boston: University of Massachusetts Press.

Created: 02 November 2013 by M.D. Guiry

Verified by: 02 August 2017 by M.D. Guiry

Accesses: This record has been accessed by users 155 times since it was created.

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

References
(Please note: only references with the binomials in the title are included. The information is from the Literature database.)

Maggs, C.A., Le Gall, L., Mineur, F., Provan, J. & Saunders, G.W. (2013). Fredericqia deveauniensis, gen. et sp. nov. (Phyllophoraceae, Rhodophyta), a new cryptogenic species. Cryptogamie Algologie 34: 273-296.

Linking to this page: http://www.algaebase.org/search/species/detail/?species_id=147817

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 19 November 2018.

SITE © 1996 - 2018 M.D. Guiry. All rights reserved.

Website Design : 249 Design Studio