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A MORPHOLOGICAL STUDY OF FIMBRIFOLIUM , A NEW GENUS IN THE CYSTOCLONIACEAE (GIGARTINALES, RHODOPHYTA) 1
Author(s) -
Hansen Gayle I.
Publication year - 1980
Publication title -
journal of phycology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.85
H-Index - 127
eISSN - 1529-8817
pISSN - 0022-3646
DOI - 10.1111/j.1529-8817.1980.tb03021.x
Subject(s) - gigartinales , biology , botany , genus , taxon , rosette (schizont appearance) , oblate spheroid , zoology , algae , physics , atomic physics , immunology
Fimbrifolium is described as a new genus for the taxon, Rhodophyllis dichotoma (Lepechin) Gobi. Vegetatively, Fimbrifolium dichotomum is similar to some species of Rhodophyllis and Craspedocarpus, but reproductively it differs from these genera in three main features: the carposporophyte develops with the first gonimoblast initial produced in an outward direction away from the axis; at maturity, the carposporophyte consists of a central fusion cell with outwardly radiating chains of carposporangia and inwardly radiating nutritive filaments; and, in the mature tetrasporophyte, tetrasporangia are borne in an intercalary position in cortical rosette‐filaments. The relative importance of these features as generic characteristics in the family is discussed.