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Chlorophyceae: Tetrasporales: Gloeococcaceae
Chlamydophyceae: Tetrasporales: Palmellopsidaceae (Palmellaceae)

Asterococcus
Scherffel 1909

Family: Colonies or unicells; planktonic or benthic; cell body spherical or ellipsoidal in shape, embedded within a gelatinous sheath; (Introduction to the Freshwater Algae, 1999).
Genus: Planktonic; unicellular or colony of 4, 8, or 16 cells; both cells and its colony covered with layers of mucous sheath; cell body spherical; cell wall smooth; a single chloroplast star-shaped, with a pyrenoid located at the center (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
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Asterococcus superbus
A. superbus
12-24 x 11-21 μm
Showa Memorial p.
Tokyo, 2001
Asterococcus superbus
A. superbus
10-20 x 7-17 μm
Maruyama Park
Saitama, 2002
Asterococcus superbus
A. superbus
24 x 21 μm
13 x 10 μm
Toneri Park
Tokyo, 2001
Asterococcus
A. superbus ?
15-17 x 12-15 μm
Kosugi
Toyama, 2002
Asterococcus
A. superbus ?
10 x 8 μm
near City Hall
Fujimi
Saitama, 2004
Asterococcus
A. superbus ?
12 x 7 μm
near Town Hall
Shobu
Saitama, 2004
Asterococcus
A. superbus ?
14-23 μm
Yamaguchi university
Yamaguchi, 2004
Asterococcus
A. superbus ?
20-24 μm
Komado marsh
Showa & Tajima
Fukushima, 2004
Asterococcus
A. superbus ?
μm
Miyatoko m
Minami-Aizu
Fukushima, 2008
Asterococcus superbus
A. superbus ?
μm
Water reservoir
Nabekura h.l.
Nagano, 2008
Asterococcus superbus
A. superbus ?
μm
Ryugahara m.
Yuri-Honjo
Akita, 2008
Asterococcus
Asterococcus sp. ?
11-15 x 8-13 μm
Watarase-Yusuichi
Tochigi, 2001
Asterococcus
Asterococcus ?
or Chlamydomonas ?
15 x 12 μm
Akigase Park
Saitama, 2002
Asterococcus
Asterococcus ?
μm
Iruma
Saitama, 2003
Asterococcus
Asterococcus ?
μm
Lake Biwa
Maihara
Shiga, 2003
Asterococcus
Asterococcus sp.
μm
Omine-numa
Tsukiyono
Gunma, 2003
Asterococcus
Asterococcus sp.
μm
Naruto
Chiba, 2003
Asterococcus
Asterococcus sp.
μm
Ina
Saitama, 2003
Asterococcus
Asterococcus sp.
14-18 μm
Tanohara Natural p.
Ontake highland
Nagano, 2005
Asterococcus
Asterococcus sp.
23 μm
Iroha-numa
Zao mountain
Yamagata, 2006
Similar Genus -->> Chlamydomonoas; Chlorococcum; Chlamydocapsa;

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Asterococcus
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