Home / Chlorophyceae /Colonies / Non-flagellated / Micractinium

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Name derivation:

“Little beam” – Little Micro- beam –actinium

Classification:

Micractinium  Fresinius  1858;  9 of 31 species descriptions are currently accepted taxonomically (Guiry and Guiry 2013).

Order Chlorellales;  Family Chlorellaceae

 

Morphology:

Spherical individual cells group together into shapes varying from a ball to complex triangle matrices. Thin spines protrude from the colony. Sometimes multiple spines per individual cell.

Similar genera:

 

 

Habitat:

Found in slow, still freshwater.

 

References:

Fresenius, G.  1858.  Beiträge zur Kenntniss mikroskopischer Organismen.  Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft 2: 211-242.

Guiry, M.D. in Guiry, M.D. and G.M.Guiry  2013.  AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 28 January 2013.