159,447 species and infraspecific names are in the database, 22,547 images, 62,052 bibliographic items, 464,197 distributional records.

Ulva expansa (Setchell) Setchell & N.L.Gardner 1920

Publication details
Ulva expansa (Setchell) Setchell & N.L.Gardner 1920: 285

Published in: Setchell, W.A. & Gardner, N.L. (1920). The marine algae of the Pacific coast of North America. Part II. Chlorophyceae. University of California Publications in Botany 8: 139-374, pls 9-33.
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Type species
The type species (holotype) of the genus Ulva is Ulva lactuca Linnaeus.

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

Ulva fasciata f. expansa Setchell

Type information
Type locality: Monterey, California [USA] (Hughey, Miller & Gabrielson 2018: 1302). Lectotype: UC 98481 (Hughey, Miller & Gabrielson 2018: 1302).

Origin of species name
Participle A (Latin), expanded, spread out (Stearn 1973).

Homotypic Synonym(s)
Ulva fasciata f. expansa Setchell 1905

Nomenclatural notes
Blooms of an Ulva at Seaside, California in 2014-2016 were sequenced and were compared with a sequence of the type (UC); the two were identical. - (28 Nov 2018) - M.D. Guiry

Distributional notes
Results of studies carried out by O'Kelly et al. (2010) suggest that Ulva populations in tropical and subtropical regions consist of species that are largely unique to these areas, for which the application of names based on types from temperate and boreal European and North American waters is inappropriate. - (1 Sep 2010) - Wendy Guiry

General environment
This is a marine species.

Detailed distribution with sources
(as Ulva expansa (Setchell) Setchell & N.L.Gardner)
North America: California (CA) (Abbott & Hollenberg 1976, Silva 1979, Stewart 1991, Kennison et al. 2011, Miller 2012), Gulf of California (Norris, Aguilar-Rosas & Pedroche 2017), Mexico (Castaneda-Fernández de Lara et al. 2010 , Pedroche & Sentíes 2020).

Central America: Gulf of California (Ochoa-Izaguirre & Soto-Jiménez 2015), Mexico (Pacific) (Pedroche & al. 2005).

South-east Asia: Indonesia (Atmadja & Prud'homme van Reine 2014).

Pacific Islands: Hawaiian Islands (HI) (Abbott & Huisman, 2004), Northwestern Hawaiian Islands (Tsuda 2014).

Key references
Braune, W. (2008). Meeresalgen. Ein Farbbildführer zu den verbreiteten benthischen Grün- Braun- und Rotalgen der Weltmeere. pp. [1]-596, pls 1-266 (colour photographs). Ruggell: A.R.G. Gantner Verlag.

Hughey, J.R., Maggs, C.A., Mineur, F., Jarvis, C., Miller, K.A., Shabaka, S.H. & Gabrielson, P.W. (2019). Genetic analysis of the Linnaean Ulva lactuca (Ulvales, Chlorophyta) holotype and related type specimens reveals name missapplications, unexpected origins, and new synonomies (Letter). Journal of Phycology 55(3): 503-508, 2 figs.

Hughey, J.R., Miller, K.A. & Gabrielson, P.W. (2018). Mitogenome analysis of a green tide forming Ulva from California, USA confirms its identity as Ulva expansa (Ulvaceae, Chlorophyta). Mitochondrial DNA Part B 3(2): 1302-1303.

Pedroche, F.F., Silva, P.C., Aguilar-Rosas, L.E., Dreckmann, K.M. & Aguilar-Rosas, R. (2005). Catálogo de las algas marinas bentónicas del Pacífico de México. I. Chlorophycota. pp. i-viii, 17-146. Ensenada, México: Universidad Autónoma de Baja California.

Scagel, R.F. (1957). An annotated list of the marine algae of British Columbia and northern Washington (including keys to genera). Bulletin, National Museum of Canada 150: [i]-vi, 1-289.

Smith, G.M. (1944). Marine algae of the Monterey Peninsula. pp. i-ix, 1-622, 98 pls. Stanford: Stanford University Press.

Created: 17 April 1998 by M.D. Guiry

Verified by: 30 October 2019 by M.D. Guiry

Accesses: This record has been accessed by users 2116 times since it was created.

Verification of data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.

(Please note: only references with the binomials in the title are included. The information is from the Literature database.)

Fong, P., Desmond, J.S. & Zedler, J.B. (1997). The effect of a horn snail on Ulva expansa (Chlorophyta): consumer or facilitator of growth?. Journal of Phycology 33: 353-359, 5 figs, 1 table.
Grobe, C.W. & Murphy, T.M. (1994). Inhibition of growth of Ulva expansa (Chlorophyta) by ultraviolet-B radiation. Journal of Phycology 30: 783-790, 5 figs, 2 tables.
Hughey, J.R., Miller, K.A. & Gabrielson, P.W. (2018). Mitogenome analysis of a green tide forming Ulva from California, USA confirms its identity as Ulva expansa (Ulvaceae, Chlorophyta). Mitochondrial DNA Part B 3(2): 1302-1303.

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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 30 October 2020.

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