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Name derivation:

 

Classification:

Closteriopsis  Lemmermann  1899;  3 of 7 described species are currently accepted taxonomically (Guiry 2013)

Order Chlorellales;  Family Chlorellaceae

 

Morphology:

Green unicells variable in length from 10 to >500 µm, spindle shaped usually with pointed ends.  Many pyrenoids per cell.

 

Similar genera:

Monoraphidium has a mucilage envelope and lacks multiple pyrenoids per cell.

 

Habitat:

Freshwater plankton

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References:

Guiry, M.D. and G.M. Guiry  2013.  AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 1 January 2013.

Lemmermann, E.  1899.  Das Phytoplankton sächsischer Teiche. Forschungsberichte aus der Biologischen Station zu Plön 7: 96-135, pls I, II.