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

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Viridiplantae
Infrakingdom Chlorophyta infrakingdom
Phylum Chlorophyta
Subphylum Chlorophytina
Class Chlorophyceae
Order Sphaeropleales
Family Scenedesmaceae
Subfamily Scenedesmoideae
Genus Scenedesmus

Pictures

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Scenedesmus deserticola L.A.Lewis & Flechtner
Cas2-VF27-2 crescent shaped cells. 01 Jan 0001. Valerie Flechtner. © Valerie Flechtner.

 

Asperococcus intricatus J.Agardh

Scenedesmus deserticola L.A.Lewis & Flechtner Cas2-VF27-2 crescent shaped cells
© Valerie Flechtner

Publication details
Scenedesmus deserticola L.A.Lewis & Flechtner 2004: 1133, figs. 1 A, D, 2 A, B, nom. inval.

Published in: Hegewald, E., Bock, C. & Krienitz, L. (2013). A phylogenetic study on Scenedesmaceae with the description of a new species of Pectinodesmus and the new genera Verrucodesmus and Chodatodesmus (Chlorophyta, Chlorophyceae). Fottea 14(2): 149-164.
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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 Tetradesmus deserticola L.A.Lewis & Flechtner

Synonym(s)
No synonyms are currently included in AlgaeBase.

Nomenclatural notes
Invalid: Culture designated as holotype. - (24 Nov 2006) - M.D. Guiry

General environment
This is a freshwater/terrestrial species.

Description
Colonies grown on agar mounded, grainy, moist; yellow to olive when young, becoming bright orange to red with age. Cells solitary, variable in form. Cells crescent to lemon-shaped with pointed ends when young, becoming oval to almost spherical with age. Small protrusions evident at poles in some cells. In liquid cultures, long thin extensions evident at each end of crescent cells. Crescent cells 3-8 microns wide, 1.5 -2 times long as wide. Oval cells 7-21 microns wide by 8-24 microns long. Uninucleate. Chloroplast parietal with a single lobe. Clear pyrenoid with obvious starch hull. Granular cytoplasm. Orange to red oil droplets, sometimes copious, in aging cells. Two to eight autospores produced by longitudinal division. No motile stages or colony formation observed in liquid culture.

Type information
Type locality: San Nicolas Island, California, USA (33.2ºN latitude, 119.2º W longitude) (Lewis & Flechtner 2004: 1133). Holotype: July 1993; Desert soil surface. (Lewis & Flechtner 2004: 1133, 1134). Notes: Holotype: Biotic Crust Project BCP-SNI-2, UTEX Culture Collection, University of Texas, Austin, Texas, USA. Paratypes: Biotic Crust Project BCP-YPG-Char, BCP-HAF2-VF10, BCP-EM2-VF3, BCP-EM2-VF30.

Detailed distribution with sources (Click to Load)

Source of current name
Lewis, L.A. & Flechtner. V.R. (2019). Tetradesmus bajacalifornicus L.A.Lewis & Flechtner, sp. nov. and Tetradesmus deserticola L.A.Lewis & Flechtner, sp. nov. (Scenedesmaceae, Chlorophyta). Notulae Algarum 88: 1-2, no figs.

Key references
Flechtner, V.R., Johansen, J.R. & Belnap, J. (2008). The biological soil crusts of the San Nicolas Island: enigmatic algae from a geographically isolated ecosystem. Western North American Naturalist 68(4): 405-436.

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.

Created: 24 November 2006 by Wendy Guiry

Verified by: 23 January 2019 by M.D. Guiry

Accesses: This record has been accessed by users 963 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=131697

Citing AlgaeBase
Cite this record as:
M.D. 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 23 May 2019.

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