Sebdenia cerebriformis N'Yeurt & Payri 2008
Publication Details
Sebdenia cerebriformis N'Yeurt & Payri 2008: 15, figs 1-16
Published in: N'Yeurt, A.D.R. & Payri, C.E. (2008). Sebdenia cerebriformis sp. nov. (Sebdeniaceae, Sebdeniales) from the south and western Pacific Ocean. Phycological Research 56: 13-20.
Request PDFType Species
The type species (lectotype) of the genus Sebdenia is Sebdenia monardiana (Montagne) Berthold.
Status of Name
This name is currently regarded as a synonym of Rhytimenia cerebriformis (N'Yeurt & Payri) L.Le Gall & Vergés.
Source of Synonymy
Huisman, J.M., Saunders, G.W., Le Gall, L. & Vergés, A. (2016). Rhytimenia, a new genus of red algae based on the rare Kallymenia maculata (Kallymeniaceae, Rhodophyta). Phycologia 55(3): 299-307.
Type Information
Type locality: Fish Patch, Suva Reef, Fiji (18° 09.2 S, 178° 24. 0 E); (N'Yeurt & Payri 2008: 15) Holotype: D.W. Keats; 01 December 1994; -30m; SUVA-A; 5522L (N'Yeurt & Payri 2008: 15) Notes: Material is formalin-preserved.
General Environment
This is a marine species.
Description
Plants deep red, to 10 cm broad, compressed to aplanate, soft and lubricous, with distinctive mamillate lobes, convoluted and infolded, attached to the substratum by multiple, terete to compressed, perennial basal holdfasts 0.6-1.0 mm in diameter, with distinct concentric growth lines 700-800 µm apart. Margins smooth to slightly undulate, lacking innovations. Cortex 3-4 layered, pseudoparenchymatous, the outermost cells densely pigmented, ovoid to subrectangular, 3-5 µm in diameter; inner cells subspherical, 7.5-8.0 µm in diameter. Innermost cortical cells hyaline, 12-25 µm in diameter, with peripheral chloroplasts. Below the cortex lies a subtending region of large, 4-5 armed stellate cells (30) 35-50 (70) µm in diameter. The medulla is lax, composed of cylindrical filaments (5) 10-20 (30) µm in diameter. Medullary gland cells are scarce, to 5 µm in diameter and lateral on medullary filaments. Plants are nitent and adhere well to paper on drying.
Habitat
Growing in colonies or as a single individual on coral substratum, at depths from 8 down to 55 m.
Created: 11 June 2007 by Antoine N'Yeurt.
Last updated: 08 June 2016
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Linking to this page: https://www.algaebase.org/search/species/detail/?species_id=132426
Citing AlgaeBase
Cite this record as:
G.M. Guiry in Guiry, M.D. & Guiry, G.M. 08 June 2016. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 05 December 2024
