156,497 species and infraspecific names are in the database, 22,022 images, 60,456 bibliographic items, 447,765 distributional records.

Scenedesmus rotundus L.A.Lewis & Flechtner, nom. inval.

Publication details
Scenedesmus rotundus L.A.Lewis & Flechtner 2004: 1134, fig. 1C, nom. inval.

Published in: Lewis, L.A. & Flechtner, V.R. (2004). Cryptic species of Scenedesmus (Chlorophyta) from desert soil communities of western North America. Journal of Phycology 40(6): 1127-1137, 5 figs, 2 tables.

Publication date: 2004

Type species
The type species (lectotype) of the genus Scenedesmus is Scenedesmus obtusus Meyen.

Status of name
This name is currently regarded as a synonym of Flechtneria rotunda Sciuto & L.A.Lewis

Origin of species name
Adjective (Latin), almost circular, with length breadth ration of about 6 to 5 (Stearn 1973).

No synonyms are currently included in AlgaeBase.

General environment
This is a terrestrial species.

Colonies grown on agar spherical, sparse, light green becoming slightly orange with age. Cells oval to spherical, 4-34 microns in diameter. Uninucleate. Hollow, striated parietal chloroplast. Spherical pyrenoid with marked starch hull. Cells become vacuolated with age. Orange pigment accumulating in some cells. Eight to 16 spherical autospores released by splitting of mother cell wall. Cell wall thickening slightly with age. No motile stages or colony formation obseved in liquid culture.

Type information
Type locality: San Nicolas Island, California, USA (33.2ºN latitude, 119.2ºW longitude) (Lewis & Flechtner 2004: 1134). Holotype: July 1993; Desert soil surface. (Lewis & Flechtner 2004: 1134). Notes: Holotype: Biotic Crust Project BCP-SEV3-VF49, UTEX Culture Collection, University of Texas, Austin, Texas, USA.

Detailed distribution with sources (Click to Load)

Key references
Sciuto, K., Lewis, L.A., Verleyen, E., Moro, I. & LaRocca, N. (2015). Chodatodesmus australis sp. nov. (Scenedesmaceae, Chlorophyta) from Antarctica, with the emended description of the genus Chodatodesmus, and circumscription of Flechtneria rotunda gen. et sp. nov.. Journal of Phycology 51(6): 1172-1188.

Created: 24 November 2006 by Wendy Guiry

Verified by: 29 January 2016 by Wendy Guiry

Accesses: This record has been accessed by users 475 times since it was created.

Verification of data
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Linking to this page: http://www.algaebase.org/search/species/detail/?species_id=131696

Citing AlgaeBase
Cite this record as:
Wendy Guiry in Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 18 October 2019.

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