Fredericqia deveauniensis Maggs, L.Le Gall, Mineur, Provan & G.W.Saunders 2013
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.
Request PDFType 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.
Type Information
Holotype locality: "Ballyhenry Island, County Down, Northern Ireland (54.392536° N; 5.57712° W)"; (Maggs & al. 2013: 285) Holotype: C.A. Maggs; 11 Nov. 1988; BM; 00103312. (Maggs & al. 2013: 285) Notes: Isotypes: PC0144058; UNB.
Eponomy
Named after Louis Deveau, the founder of Acadian Seaplants Ltd, Nova Scotia, where this species has been in cultivation since 1988,...
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.
Created: 02 November 2013 by M.D. Guiry.
Last updated: 02 August 2017
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Linking to this page: https://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. 02 August 2017. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 24 November 2024
