153,622 species and infraspecific names are in the database, 20,981 images, 59,421 bibliographic items, 412,629 distributional records.

Soranthera Postels & Ruprecht, 1840

Classification:
Empire Eukaryota
Kingdom Chromista
Phylum Ochrophyta
Class Phaeophyceae
Subclass Fucophycidae
Order Ectocarpales
Family Chordariaceae

Holotype species: Soranthera ulvoidea Postels & Ruprecht

Original publication and holotype designation: Postels, A. & Ruprecht, F. (1840). Illustrationes algarum in itinere circum orbem jussu imperatoris Nicolai I. Atque auspiciis navarchi Friderici L├╝tke annis 1826, 1827, 1828 et 1829 celoce Seniavin exsecuto in Oceano pacifico, inprimis septemtrionale ad littora rossica asiatico-americana collectarum. pp. [i-vi ], [i]- iv, 1-28 [1-2, index], [Latin:] [-iv], [1]-22, [1-2, index], 40 pls. Petropoli [St. Petersburg]: Typis Eduardi Pratz.

Taxonomic status: currently recognized as a distinct genus.

Most recent taxonomic treatment adopted: Silberfeld, T., Rousseau, F. & Reviers, B. de (2014). An updated classification of brown algae (Ochrophyta, Phaeophyceae). Cryptogamie Algologie 35(2): 117-156.

Description: Plants epiphytic, attached by a penetrating base, spherical and solid when young, later becoming hollow, inflated, membranous, yellowish brown, up to 10 cm in diameter, polystichous, composed of inner large colorless cells and smaller pigmented peripheral cells. Unilocular sporangia in discrete, punctate sori associated with multicellular paraphyses and phaeophycean hairs, scattered on whole thalli, up to 100 _m in length. Each cell contains many disc-shaped chloroplasts with pyrenoids. Wynne (1969) cultured materials from California and showed heteromorphic life history. Unispores from field plants germinated into prostrate branched filaments forming uniseriate plurilocular sporangia. Plurispores developed into plethysmothalli forming plurilocular sporangia or parenchymatous globose macrothallus, although it did not mature. Sexual reproduction not confirmed. Distributed in cold and temperate water area of North Pacific Ocean. Summer annual.

Information contributed by: H. Kawai. The most recent alteration to this page was made on 20 Jun 2014 by M.D. Guiry.

Numbers of names and species: There are 2 species names in the database at present, of which 1 has 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: 20 June 2014 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=36985

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 20 November 2018.

SITE © 1996 - 2018 M.D. Guiry. All rights reserved.

Website Design : 249 Design Studio