''Thorea'' is a genus of
fresh water
Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salt (chemistry), salts and other total dissolved solids. The term excludes seawater and brackish water, but it does include ...
algae in the division Rhodophyta (
red algae
Red algae, or Rhodophyta (, ; ), make up one of the oldest groups of eukaryotic algae. The Rhodophyta comprises one of the largest Phylum, phyla of algae, containing over 7,000 recognized species within over 900 Genus, genera amidst ongoing taxon ...
).
''Thorea'' is a small alga with filaments up to 200 cm long, dark green in colour and not red as are marine Rhodophyta. The filaments have only as few secondary branches.
''Thorea'' is distributed throughout temperate and tropical regions.
The genus was
circumscribed In geometry, a circumscribed circle for a set of points is a circle passing through each of them. Such a circle is said to ''circumscribe'' the points or a polygon formed from them; such a polygon is said to be ''inscribed'' in the circle.
* Circum ...
by
Jean Baptiste Bory de Saint-Vincent
Jean-Baptiste Geneviève Marcellin Bory de Saint-Vincent was a French naturalist, officer and politician. He was born on 6 July 1778 in Agen (Lot-et-Garonne) and died on 22 December 1846 in Paris. Biologist and geographer, he was particularly int ...
in Ann. Mus. Natl. Hist. Nat. vol.12 on page 126 in 1808.
[
The genus name of ''Thorea'' is in honour of Jean Thore (1762–1823), who was a French botanist and physician who practiced medicine in the town of ]Dax
The DAX (''Deutscher Aktienindex'' (German stock index); ) is a stock market index consisting of the 40 major German blue chip companies trading on the Frankfurt Stock Exchange. It is a total return index. Prices are taken from the Xetra t ...
.
Species
As accepted by WoRMS
The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive catalogue and list of names of marine organisms.
Content
The content of the registry is edited and maintained by scien ...
;Thorea bachmannii
''Thorea'' is a genus of fresh water algae in the division Rhodophyta (red algae). ''Thorea'' is a small alga with filaments up to 200 cm long, dark green in colour and not red as are marine Rhodophyta. The filaments have only as few seconda ...
''
*'' Thorea brodensis''
*'' Thorea clavata''
*'' Thorea conturba''
*'' Thorea flagelliformis''
*'' Thorea gaudichaudii''
*'' Thorea hispida''
*'' Thorea okadae''
*'' Thorea okaidai''
*'' Thorea prowsei''
*'' Thorea riekei''
*'' Thorea siamensis''
*'' Thorea violacea''
*'' Thorea zollingeri''
Former species;[
*''Thorea andina'' accepted as ''Thorea hispida'' (synonym)
*''Thorea chilensis'' accepted as '' Myriogloea chilensis'' (synonym)
*''Thorea lehmannii'' accepted as ''Thorea hispida'' (synonym)
*''Thorea ramosissima'' accepted as ''Thorea hispida'' (synonym)
]
''Thorea'' in UK
There is only one species of ''Thorea'' in the British Isles
The British Isles are an archipelago in the Atlantic Ocean, North Atlantic Ocean off the north-western coast of continental Europe, consisting of the islands of Great Britain, Ireland, the Isle of Man, the Inner Hebrides, Inner and Outer Hebr ...
: ''Thorea hispida'' (Synonyms: ''Thorea anadina'' , ''T. lehmannii'' and ''T. ramosissima'' ).County Donegal
County Donegal ( ; ) is a Counties of Ireland, county of the Republic of Ireland. It is in the Provinces of Ireland, province of Ulster and is the northernmost county of Ireland. The county mostly borders Northern Ireland, sharing only a small b ...
Mountains, going from Letterkenny to Dunfanaghy; July''. These specimens are in the Ulster Museum
The Ulster Museum, located in the Botanic Gardens in Belfast, has around 8,000 square metres (90,000 sq. ft.) of public display space, featuring material from the collections of fine art and applied art, archaeology, ethnography, treasures ...
(BEL: F42–F47), but proved to have been incorrectly identified and were specimens of ''Batrachospermum
''Batrachospermum'' is a genus of red algae from the family ''Batrachospermaceae''. Due to its complex biological life cycle, descriptions of the taxon typically focus on gametophytes, while sporophytes, i.e., carposporophytes, are filamentous st ...
''.
References
{{Taxonbar, from=Q7796197
Red algae genera
Florideophyceae