The Morphology of Griffithsia tomo-yamadae Okamura (Ceramiaceae, Rhodophyta): a Little-Known Species from the Northeast Pacific
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S. M. Boo
Abstract
The ceramiaceous red alga Griffithsia tomo-yamadae was described from the Pacific side of Honshu, Japan by Okamura in 1936, based on vegetative and tetrasporangial material. Unreported since its original description, the species has recently been found growing in abundance at 1–2 m depths below lowest tide levels at Geojedo Island off the southeastern coast of Korea. Our detailed observations confirm the validity of G. tomo-yamadae as a species characterized by complanate, flabellate thalli; pseudodi-/trichotomous branching; nodal tetrasporangial fascicles that form an inner ring of bearing cells surrounded by 8–9 involucral branches, consisting of single basal cell and two terminal cells; naked spermatangial fascicles; and cystocarps surrounded by five involucral branches that originate from the hypogenous cell. Sexual reproductive structures are described for the first time and conform to previous reports of the genus.
Copyright © 2001 by Walter de Gruyter GmbH & Co. KG
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Articles in the same Issue
- Laurencia venusta (Ceramiales, Rhodophyta): a New Record from the Atlantic Ocean
- Reproduction, Recruitment and Geographical Distribution of Fucus serratus L. in the Baltic Sea
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- An Investigation of the Genetic Variation in Four Fucales Species Using Cellulose Acetate Electrophoresis
- The Cellular Ability of Desiccation Tolerance in Japanese Intertidal Seaweeds
- Absolute Configuration of 2,6-di-O-Alkylgalactose Obtained from Peralkylated Red Algal Polysaccharides
- Epifluorescence and Scanning Electron Microscopy of Host-Pathogen Interactions between Pythium porphyrae (Peronosporales, Oomycota) and Porphyra yezoensis (Bangiales, Rhodophyta)
- Fungi on Juncus roemerianus. 16. More New Coelomycetes, Including Tetranacriella, gen. nov.
- Hypoglossum imperfectum nov. spec. (Rhodophyta, Delesseriaceae), from the South African South Coast
- Stirnia prolifera gen. et sp. nov. (Rhodymeniales, Rhodophyta) from the Sultanate of Oman
- A Check-List of Marine Seaweeds of the Mediterranean and Atlantic Coasts of Morocco. I. Chlorophyceae Wille s. l.
- The Removal of Laingia hookeri (Lyall) Kylin (Delesseriaceae, Rhodophyta) from the Marine Algal Flora of Chile
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