Phyllophora Greville, 1830: 135

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

Holotype species: Phyllophora crispa (Hudson) P.S.Dixon

Original publication:Greville, R.K. (1830). Algae britannicae, or descriptions of the marine and other inarticulated plants of the British islands, belonging to the order Algae; with plates illustrative of the genera. pp. [i*-iii*], [i]-lxxxviii, [1]-218, pl. 1-19. Edinburgh & London: McLachlan & Stewart; Baldwin & Cradock.
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Taxonomic status: currently recognized as a distinct genus.

Description: Plants reach 20 cm in height and consist of flattened, generally subdichotomous blades, with or without marginal proliferations, borne on cylindrical stipes arising singly or in clusters from a discoid base. Spermatangial sori and procarps form either at apices of primary axes or in specialized outgrowths or bladelets, the cystocarps lacking an ostiole. Spermatangia are produced in ampullar-shaped pits (Dixon and Irvine 1977). Tetrasporangial nemathecia form on the surfaces of primary axes.

Comments: The iota carrageenans of the genus have been studied by McCandless et al. (1981) and Usov and Shashkov (1985). The genera Ozophora, Petroglossum and Phyllophora appear to be very closely related, and were all treated as belonging to Phyllophora by Kylin (1956). Abbott (1969) and Hollenberg (1943, 1945) distinguish Ozophora on the basis of its constant restriction of male and female structures to adventitious outgrowths, and Petroglossum by the restriction of its spermatangia to the major axes. Additional differences between the genera are discussed by Schneider and Searles (1976). Distribution: Most species occur in the north Atlantic of Europe and America, with others distributed in the north Pacific. Antarctic species are recorded (Neushul 1968) but are less well known.

NCBI Nucleotide Sequences

Numbers of names and species: There are 91 species (and infraspecific) names in the database at present, of which 11 have been flagged as currently accepted taxonomically.

Names: ('C' indicates a name that is currently 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):

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.

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=26

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2013. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 18 May 2013.

Algaebase taxon LSID: urn:lsid:algaebase.org:taxname:8420