152,930 species and infraspecific names are in the database, 20,947 images, 59,150 bibliographic items, 408,271 distributional records.

Stenogramma Harvey, 1840

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

Holotype species: Stenogramma californicum Harvey

Currently accepted name for the type species: Stenogramma interruptum (C.Agardh) Montagne

Original publication and holotype designation: Harvey, W.H. (1840). Algae. In: The botany of Captain Beechey's voyage; comprising an account of the plants collected by Messrs Lay and Collie, and other officers of the expedition, during the voyage to the Pacific and Bering's Strait, performed in His Majesty's Ship Blossom, under the command of Captain F.W. Beechey, R.N., F.R. & A.S., in the years 1825, 26, 27, and 28. (Hooker, W.J. & Arnott, G.A.W. Eds), pp. 406-409. London: Henry G. Bohn.
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Taxonomic status: currently recognized as a distinct genus.

Gender: This genus name is currently treated as neuter.

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.

Nomenclatural notes
This genus name has long been rendered "Stenogramme". There are two similar roots in Greek: "-gramma", which is neuter and "-gramme", which is feminine. Harvey's original spelling, Stenogramma followed the former and was treated as neuter by Harvey (1840: 408), and the genus name is thus "Stenogramma" and is neuter (see Art. 6.1) . According to Art. 62.1, "A generic name retains the gender assigned by nomenclatural tradition, irrespective of classical usage or the author's original usage. A generic name without a nomenclatural tradition retains the gender assigned by its author (but see Art. 62.4)." - (14 Mar 2011) - M.D. Guiry

Taxonomic notes
Monotypic when first introduced. - (23 Jan 2017) - M.D. Guiry

Description: Plants reach 20 cm in length and consist of flattened, linear, subdichotomous blades, with or without marginal proliferations, borne directly or with a short terete stalk on a crustose base. Spermatangia form in sori on the major axes. Procarps are aggregated into a long, linear sorus running interruptedly down the centers of the blades like a midrib, the cystocarps developing within the sori as a more-or-less continuous fruiting body. Pericarps differentiate along the "midribs" and are faintly ostiolate. Tetrasporangial nemathecia form in patches scattered over the fronds.

Information contributed by: G.T. Kraft. The most recent alteration to this page was made on 6 Mar 2017 by M.D. Guiry.

Comments: Distribution: The type occurs from Britain to Morocco and the Cape Verde Islands in the Atlantic, from British Columbia to Baja California and Japan in the Pacific, and from numerous scattered localities in the Southern Hemisphere such as South Africa, southern Australia, New Zealand, and Chile (Ramirez and Rojas 1988). Plants generally occur on rock in subtidal habitats. The second species is rarely collected and endemic to southern Australia.

Furneaux & Miller (1985) have found that gel extracts of Stenogramma do not match the structure of any known carrageenan fraction.

Numbers of names and species: There are 9 species names in the database at present, of which 9 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.

Verification of data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.

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

Verified by: 06 March 2017 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=37415

Citing AlgaeBase
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 23 September 2018.

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