156,476 species and infraspecific names are in the database, 22,021 images, 60,453 bibliographic items, 447,756 distributional records.

Heterosiphonia Montagne, 1842, nom. cons.

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Biliphyta
Phylum Rhodophyta
Subphylum Eurhodophytina
Class Florideophyceae
Subclass Rhodymeniophycidae
Order Ceramiales
Family Delesseriaceae
Subfamily Heterosiphonioideae

Holotype species: Heterosiphonia berkeleyi Montagne

Original publication and holotype designation: Montagne, [J.F.] C. (1842). Prodromus generum specierumque phycearum novarum, in itinere ad polum antarcticum...ab illustri Dumont d'Urville peracto collectarum, notis diagnosticis tantum huc evulgatarum, descriptionibus verò fusioribus nec non iconibus analyticis iam iamque illustrandarum. pp. [1-]16. Parisiis [Paris]: apud Gide, editorem.
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Taxonomic status: currently recognized as a distinct genus.

Gender: This genus name is currently treated as feminine.

Most recent taxonomic treatment adopted: Choi, H.-G., Kraft, G.T., Lee, I.K. & Saunders, G.W. (2002). Phylogenetic analyses of anatomical and nuclear SSU rDNA sequence data indicate that the Dasyaceae and Delesseriaceae (Ceramiales, Rhodophyta) are polyphyletic. European Journal of Phycology 37: 551-570.

Nomenclatural notes
Monotypic when first introduced. - (25 Jan 2017) - M.D. Guiry

Description: Thallus erect or with erect and prostrate axes, alternately distichously or subdichotomously branched; growth sympodial. Structure with 4–12 pericentral cells per axial cell; indeterminate laterals arising on every second axial cell. Axes terete or compressed, corticated or not; determinate laterals monosiphonous beyond basal few segments, pigmented, dichotomously branched. Spermatangial branchlets usually terminating short laterals. Procarps on last-formed pericentral cell; carposporangia in rows or solitary and terminal, the later-formed ones laterally produced; cystocarps with a conspicuous pericarp. Tetrasporangial stichidia terminal on laterals, with 4–6 sporangia per segment; sporangia enclosed by cover cells when mature.

Information contributed by: Huisman (2018). The most recent alteration to this page was made on 8 Oct 2018 by M.D. Guiry.

Numbers of names and species: There are 45 species names in the database at present, as well as 12 infraspecific names. Of the species names, 32 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.

References
Falkenberg, P. (1901). Die Rhodomelaceen des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. Fauna und Flora des Golfes von Neapel, Monographie 26. pp. i-xvi, 1-754, 10 figs, 24 pls. Berlin.

Gray, S.F. (1821). A natural arrangement of British plants, according to their relations to each other, as pointed out by Jussieu, De Candolle, Brown, &c. including those cultivated for use; with an introduction to botany, in which the terms newly introduced are explained; illustrated by figures. pp. vol. 1: [i]-xxviii, [1]- 824, pls I-XXI plates. London: Printed for Baldwin, Cradock & Joy, Paternoster-Row.

L'Hardy-Halos, M.-T. (1968). Sur la structure de la fronde chez les Dasyacées (Rhodophycées-Céramiales). Compte Rendu Hebdomadaire des Séances de l’Académie des Sciences. Paris. Série D 266: 1833-1835.

Hollenberg, G.J. (1970). Phycological notes. IV. Including new marine algae and new records for California. Phycologia 9: 61-72.

Hollenberg, G.J. (1970). Phycological notes. IV. Including new marine algae and new records for California. Phycologia 9: 61-72.

Kützing, F.T. (1843). Phycologia generalis oder Anatomie, Physiologie und Systemkunde der Tange. Mit 80 farbig gedruckten Tafeln, gezeichnet und gravirt vom Verfasser. pp. [part 1]: [i]-xxxii, [1]-142, [part 2:] 143-458, 1, err.], pls 1-80. Leipzig: F.A. Brockhaus.

Montagne, [J.F.] C. (1842). Prodromus generum specierumque phycearum novarum, in itinere ad polum antarcticum...ab illustri Dumont d'Urville peracto collectarum, notis diagnosticis tantum huc evulgatarum, descriptionibus verò fusioribus nec non iconibus analyticis iam iamque illustrandarum. pp. [1-]16. Parisiis [Paris]: apud Gide, editorem.

Parsons, M.J. (1975). Morphology and taxonomy of the Dasyaceae and the Lophothalieae (Rhodomelaceae) of the Rhodophyta. Australian Journal of Botany 23(4): 549-713, 49 figs, 1 table.

Reinsch, P.F. (1888). Species et genera nova algarum ex insula Georgia australi. Berichte der Deutschen Botanischen Gesellschaft 6: 144-156.

West, J.A. (1970). The conspecificity of Heterosiphonia asymmetria and H. densiuscula and their life histories in culture. Madroño 20: 313-319.

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: 25 January 2017 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=32784

Citing AlgaeBase
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 15 October 2019.

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