|
|
|
|
||||||
|
|
|
|||||||
|
|
||||||||
|
|
||||||||
|
Click
on images for larger format |
||||||||
Name derivation:
|
||||||||
|
|
||||||||
Classification:
|
||||||||
Isthmochloron H.Skuja 1948; 3 of 6 species descriptioins are currently accepted taxonomically (Guiry and Guiry 2013).
Order Mischococcales; Family Pleurochloridaceae
Synonym: Pseudostaurastrum (Tribophyceae) but not Pseudostaurastrum (Eustigmatophyceae).
|
||||||||
Morphology:
|
||||||||
|
Unicell with four branching arms,
yellow-green to olive green, 10 – 12 μm diameter. Similar
in shape to some placoderm desmids, but has an
entire cell wall. |
||||||||
Similar genera:
|
||||||||
|
Arthrodesmus
(Charophyceae), some species, from which species
were separated and moved to Isthmochloron (Skuja 1948). Tetraedron
(Chlorophyceae) is essentially identical
morphologically. Pseudostaurastrum (Eustigmatophyceae)
is also easily confused with Isthmochloron. |
||||||||
Habitat:
|
||||||||
|
Freshwater. Reported only from Europe (Johnson 2011). |
||||||||
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 6 March 2013. Johnson, L.R.
2011. PHYLUM XANTHOPHYTA
(TRIBOPHYTA)(Yellow-Green Algae). In: John,
D.M., B.A. Whitton, and A.J. Brook (eds.). The Freshwater Algal Flora of the British
Isles. 2nd edition (878 pp). |
||||||||
