|   Unidentified sp.
 Tetrastrum ?
 cell  μm φ
 Showa-machi g.p.
 Showa
 Saitama, 2003
 |   Unidentified sp.
 cell  μm φ
 Tama-gawa g.p.
 Fuchu
 Tokyo, 2004
 | 
| A parental cell produces many daughter cells | 
|   Chlorococcum ?
 cell 3-16 μm φ
 Japan, 1998
 |   Chlorococcum ?
 cell 3-16 μm φ
 Lake Biwa
 Maihara
 Shiga, 2003
 |   Chlorococcum ?
 cell μm φ
 Higashi-Matsuyama
 Saitama, 2002
 |   Chlorococcum ?
 cell μm φ
 Ina
 Saitama, 2003
 | 
|   Chlorococcum ?
 cell μm φ
 Shimo-takatsu
 Tsuchiura
 Ibaraki, 2003
 | 
| A parental cell produces 4 daughter cells | 
|   Chlamydomonas ?
 Chlamydomonadales
 no flagellum
 cell μm φ
 Japan, 2000
 |   Chlamydomonas ?
 8-13 x 6-9 μm
 Kejo-numa
 Furukawa
 Miyagi, 2004
 |   Chlamydomonas ?
 Chlamydomonadales
 no flagellum
 cell μm φ
 Ibaraki, 2000
 |   Chlamydomonas ?
 10 x 9 μm
 Watarase river
 Ashikaga
 Tochigi, 2004
 | 
|   Unidentified
 no flagellum
 cell μm φ
 Japan, 1999
 |   Unidentified
 cell μm φ
 Nishikubo damp a.
 Iruma
 Saitama, 2003
 |   Unidentified
 stock Sak-6b
 cell μm φ
 Saitama, 2000
 |   Unidentified
 cell μm φ
 Senjo-ga-hara
 Nikko
 Tochigi, 2003
 | 
|   Palmella ?
 cell 12 μm φ
 Minuma Natural p.
 Saitama
 Saitama, 2005
 |   Unidentified
 cell 11 μm φ
 Tanohara marsh
 Shiga highland
 Nagano, 2004
 |   Unidentified
 cell μm φ
 Uruguay, 1999
 | 
|   Unidentified
 cell μm φ
 Musashi-Urawa
 Saitama, 2002
 |   Unidentified
 cell μm φ
 Ina town
 Saitama, 2003
 |   Asterococcus ?
 Tetrasporales
 cell μm φ
 Shishizuka
 Tsuchiura
 Ibaraki, 2003
 |   Unidentified
 cell μm φ
 Shimo-kawahara
 Moroyama
 Saitama, 2003
 | 
| Chlorella-like | 
|   Chlorella sp. ?
 2 samples
 cell μm φ
 1997-1998
 |   Chlorella ?
 endosymbionts
 of Mayorella
 cell μm φ
 Uruguay, 1999
 |   Chlorella ?
 5 μm φ
 Kinchakuda
 Hidaka
 Saitama, 2004
 |   Chlorella ?
 stock Tkn-1
 Numappara marsh
 Kuroiso
 Tochigi, 2003
 | 
|   Chlorella ?
 cell μm φ
 Iruma River
 Iruma
 Saitama, 2002
 |   Chlorella ?
 cell μm φ
 near Imori pond
 Myoko highland
 Niigata, 2004
 |   Unidentified sp.
 5 samples
 cell μm φ
 1999-2003
 |   Unidentified sp.
 cell 18-32 μm φ
 Ukishima marsh
 Tsugaike highland
 Nagano, 2005
 | 
| Others | 
|   Unidentified
 cell μm φ
 Japan, 1999
 |   Unidentified
 Didymocystis ?
 cell μm φ
 Japan, 1998
 |   Misc.
 cell μm φ
 Japan, 199?
 | 
|   Unidentified
 cell μm φ
 near Town Hall
 Shobu
 Saitama, 2004
 |   Unidentified
 4-4.5 x 2.5-3 μm
 Oyomi marsh
 Hakuba
 Nagano, 2004
 |   Unidentified
 μm
 Yamaguchi Univ.
 Yamaguchi, 2004
 |   Unidentified
 4-4.5 x 2.5-3 μm
 Watarase river
 Ashikaga
 Tochigi, 2004
 |