Thorea Bory, 1808

Lectotype species: Thorea ramosissima Bory

Currently accepted name for the type species: Thorea hispida (Thore) Desvaux

Original publication and holotype designation: Bory de Saint-Vincent, [J.B.G.M.] (1808). Sur un genre nouveau de la Cryptogamie aquatique, nomme Thorea. Annales du Muséum d'Histoire Naturelle 12: 126-135, 1 pl. [pl. 18].

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Description: Thalli multiaxial, red, reddish-brown, sometimes branched, resembling fuzzy string; assimilatory filaments loose, not embedded in a mucilaginous matrix. Sexual reproduction by spermatangia and carpogonia that are close to the base of the assimilatory filaments; spermatangia colorless, terminal or sub-terminal on assimilatory filaments. Carpogonial branches near the base of the assimilatory filaments, 0–2 (–3) short-cylindrical or barrel-shaped cells; carpogonia sessile with an ovoidal or bottle-shaped base and thin, filiform trichogynes; fertilized carpogonia giving rise directly to gonimoblast filaments; carposporophytes spherical to subspherical, consisting of a compact mass of short gonimoblast filaments with terminal carposporangia; carposporangia obovoidal to sub-spherical; monosporangia obovoidal, ellipsoidal, spherical or sub-spherical, arising from long branches on gametophytes or at filament apex for "Chantransia."

Information contributed by: Vis & Necchi (2021: 113).. The most recent alteration to this page was made on 2022-04-12 by M.D. Guiry.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

Gender: This genus name is currently treated as feminine.

Most recent taxonomic treatment adopted: Vis, M.L. & Necchi, O., Jr. (2021). Subphylum Eurhodophytina, Class Florideophyceae, Subclass Nemaliophycidae, Order Batrachospermales. In: Freshwater red algae Phylogeny, taxonomy and biogeography. ( Eds), pp. 95-128. Cham: Springer [Springer Nature Switzerland AG].

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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.

Linking to this page: https://www.algaebase.org/search/genus/detail/?genus_id=42778

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 12 April 2022. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 22 November 2024