152,947 species and infraspecific names are in the database, 20,947 images, 59,170 bibliographic items, 408,277 distributional records.

Fimbrifolium G.I.Hansen, 1980

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Biliphyta
Phylum Rhodophyta
Subphylum Eurhodophytina
Class Florideophyceae
Subclass Rhodymeniophycidae
Order Gigartinales
Family Cystocloniaceae

Holotype species: Fimbrifolium dichotomum (Lepechin) G.I.Hansen

Original publication and holotype designation: Hansen, G.I. (1980). A morphological study of Fimbrifolium, a new genus in the Cystocloniaceae (Gigartinales, Rhodophyta). Journal of Phycology 16: 207-217.

Taxonomic status: currently recognized as a distinct genus.

Most recent taxonomic treatment adopted: Schneider, C.W. & Wynne, M.J. (2007). A synoptic review of the classification of red algal genera a half a century after Kylin's "Die Gattungen der Rhodophyceen". Botanica Marina 50: 197-249.

Description: Plants reach 20 cm in height and are erect, membranous, and marginally proliferous. Sections are mostly pseudoparechymatous throughout save for the central axial cells. Surface rosettes of cortical cells are prominent. Carpogonial branches are 3-celled, the basal cell often bearing a single sterile cell, and auxiliary cells are not distinguishable prior to diploidization. It has not been fully determined that the female gametophyte is procarpic in the way that seems to be otherwise uniform for the family.

Information contributed by: G.T. Kraft & M.D. Guiry. The most recent alteration to this page was made on 17 Nov 2011 by M.D. Guiry.

Characters considered diagnostic of Fimbrifolium: The genus differs from Rhodophyllis, in which its initial species was originally placed, by the outward orientation of the gonimoblast initial, the central fusion cell (on which chains of carposporangia radiate toward the branch surface and filaments of elongate "nutritive" cells radiate toward the thallus center), and the intercalary tetrasporangia (which differentiate from subsurface primordia).

Comments: The species occurs in the north Atlantic from northern United States in the west to Europe and the Mediterranean in the east. It has a circumpolar Arctic distribution, extending south to northern Japan in the Pacific (Tokida, 1954). Fimbrifolium spinulosum (Ruprecht) Perestenko is known from the colder waters of the north Pacific.

Numbers of names and species: There are 3 species names in the database at present, as well as 1 infraspecific names. Of the species names, 3 have been flagged as accepted taxonomically on the basis of the listed literature under the species name. In some instances, opinions on taxonomic validity differ from author to author and users are encouraged to form their own opinion. AlgaeBase is a work in progress and should not be regarded as a definitive source only as a guide to the literature..

Names: ('C' indicates a name that is accepted taxonomically; 'S' a homotypic or heterotypic synonym; 'U' indicates a name of uncertain taxonomic status, but which has been subjected to some verification nomenclaturally; 'P' indicates a preliminary AlgaeBase entry that has not been subjected to any kind of verification. For more information on a species click on it to activate a link to the Species database):

Click here to also show infraspecific names in the list below.

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Contributors
Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in CD format. These AlgaeBase descriptions are now being continually updated, and each current contributor is identified above. The PSA and AlgaeBase warmly acknowledge the generosity of all past and present contributors and particularly the work of Dr Parker.

Descriptions of chrysophyte genera were subsequently published in J. Kristiansen & H.R. Preisig (eds.). 2001. Encyclopedia of Chrysophyte Genera. Bibliotheca Phycologica 110: 1-260.

Created: 28 December 2000 by M.D. Guiry

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Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=37977

Citing AlgaeBase
Please cite this record as:
Guiry, M.D. & Guiry, G.M. 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 25 September 2018.

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