Peyssonnelia rumoiana Kato & Masuda 2003
Publication Details
Peyssonnelia rumoiana Kato & Masuda 2003: 22, figs 1-17
Published in: Kato, A. & Masuda, M. (2003). A new crustose red alga Peyssonnelia rumoiana (Rhodophyta, Gigartinales) from Japan. Phycological Research 51(1): 21-28.
Request PDFPublication date: March 2003
Type Species
The type species (lectotype) of the genus Peyssonnelia is Peyssonnelia squamaria (S.G.Gmelin) Decaisne ex J.Agardh.
Status of Name
This name is of an entity that is currently accepted taxonomically.
Type Information
Holotype locality: Ogon-misaki, Rumoi, Hokkaido, Japan; (Kato & Masuda 2004: 22) Holotype: A. Kato; 13 August 2000; SAP; 093406 (Kato & Masuda 2004: 22) Notes: Holotype: tetrasporangial specimen.
General Environment
This is a marine species.
Description
Thallus crustose, circular, 1-4 cm in diameter and 100-230 mm in thickness in the center (excluding nemathecia) when mature, blood-red, completely adherent to the substratum with appressed margins, with a thin hypobasal calcified layer, with unicellular rhizoids; filaments of the hypothallus comprising a polyflabelate layer, 7-14 mm wide; filaments of the perithallus tightly packed, ascending somewhat obliquely from the whole upper surface of each hypothallial cell, consisting of 6-13 cells in the center of the crust. Gametophytes monoecious; cystocarpic nemathecia 350-650 mm wide, 750-1250 mm long and 100-150 mm high; gonimoblasts developing from auxiliary cells; carposporangia formed 2-16 in 1-4 rows per gonimoblast; mature carposporangia 30-50 mm in diameter and 20-40 mm in length; spermatangial nemathecia 150-260 mm wide, 150-500 mm long and up to 50 mm high; spermatangia formed in a 8-12 paired catenate series, 2 mm in diameter and 2-4 mm in length when mature. Tetrasporangial nemathecia 350-900 mm wide, 500-750 mm long, and 80-110 mm high; single tetrasporangium usually terminal, sometimes lateral on the fertile perithallial filament, with or without a unicellular pedicel; mature tgetrasporangi 25-45 mm in diameter and 70-115 mm in length.
Created: 26 November 2004 by Sandy Lawson.
Last updated: 10 March 2014
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Linking to this page: https://www.algaebase.org/search/species/detail/?species_id=65926
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 10 March 2014. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 19 April 2024
