158,849 species and infraspecific names are in the database, 22,385 images, 61,534 bibliographic items, 456,806 distributional records.

Avrainvillea xishaensis C.K.Tseng, Dong & Lu 2004

Publication details
Avrainvillea xishaensis C.K.Tseng, Dong & Lu 2004

Published in: Tseng, C.K., Dong, M. & Lu, B. (2004). New species and records of the genus Avrainvillea (Udoteaceae, Chlorophyta) from South China Sea. Studia Marina Sinica 46: .

Type species
The type species (holotype) of the genus Avrainvillea is Avrainvillea nigricans Decaisne.

Status of name
This name is of an entity that is currently accepted taxonomically.

No synonyms are currently included in AlgaeBase.

General environment
No habitat entry has yet been made for this entity.

Frond dark brown, about 9 cm tall, holdfast cylindrical, 3 cm long, 1.4 cm in diameter, several flabella arising from the holdfast, lateral flabellum adhering to each other below the middle part, usually vertically splitting to the middle part, forming lobes, slightly denticular at the apices, zonate on the surface and lacking stipe. Filaments of flabellum dichotomously branched, and constrictions above the forks, sometimes secondary constriction also present. Cortical filament tapering in surface, with pseudocortex, clavate at the apex, cortical filaments of the lower part of the flabellum irregularly torulose, sometimes cylindrical, 17-30 µm in diameter, but near the surface, thin, 7-20 µm in diameter; cortical filament of the middle part of the flabellum cylindrical, sometimes torulose,13-25 µm in diameter, but near the surface, thin, 7-16 µm in diameter; cortical filament of the upper part of the flabellum cylindrical, 10-20 µm in diameter, but near the surface, thin, usually torulose, 5-13 µm in diameter.


Key characteristics
The present species is mainly characterized by its flabellum vertically splitting to the middle, part, forming many lobes; its apices slightly denticular, zonate on the surface, and filaments tapering in surface, clavate in apex, with pseudocortex and without stipe. It is closely related to Avrainvillea obscura (C. Agardh) J. Agardh but differing in its apices being slightly denticular, and zonate on the surface, and with pseudocortex. Three other species are newly recorded for the first time from China, Avrainvillea amadelpha (Mont.) A. Gepp et E.S.Gepp, A. hollenbergii Trono and A. obscura (C. Agardh) J. Agardh.

Type information
Type locality: Jinqingdao, Xisha Islands, China Holotype: Lu Baoren; April 23,1975; AST (not Aston University) 75-0975

Detailed distribution with sources (Click to Load)

Created: 14 October 2011 by M.D. Guiry

Verified by: 14 October 2011 by M.D. Guiry

Accesses: This record has been accessed by users 292 times since it was created.

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Linking to this page: http://www.algaebase.org/search/species/detail/?species_id=140367

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2020. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 04 August 2020.

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