Family: Filamentous algae without branching; cell body cylindrical; chloroplasts band-, plate- or star-shaped (Illustrations of The Japanese Fresh-water Algae, 1977).
Genus: Filament without branching; cell body cylindrical; one or several chloroplasts band-shaped, spirally arranged within the cell, pyrenoids present; septum with or without folded structure (Guide book to the "Photomicrographs of the Freshwater Algae", 1998). About 300 species (Illustrations of The Japanese Fresh-water Algae, 1977).

Google Image Search

25-50 μm diam.
40-50 μm diam.
Spirogyra sp. 4 or 6 chl. disc-like nuc. 475 x 48 μm Hiroshima, 1998 Movies	Spirogyra sp. 4 chl. 2 turns x 49 μm Biwanokage A.P. Tajima Fukushima, 2004	Spirogyra sp. 4 chl. 2 turns x 48 μm Higashi-sano Hakuba Nagano, 2004	Spirogyra sp. 4 chl. disc-like nuc. 300 x 45 μm Tochigi, 1998
Spirogyra sp. 4 chl. 1.5 turns x 43 μm Endosymbiont ?! Nagano, 2001 Movies	Spirogyra sp. 4 chl. 40 μm diam. Showa-machi g.p. Showa Saitama, 2003	Spirogyra sp. 4 chl. 1 turn 40 μm diam. Iruma City M. Iruma Saitama, 2006
Spirogyra sp. 3 chl. 2 turns 205-375 x 46 μm Japan, 199?	Spirogyra sp. 3 chl. 1.5 turns x 48 μm Nishi-Urawa Saitama, 2001	Spirogyra sp. 3 chl. 2 turns disc-like nuc. 250 x 44 μm Tochigi, 2001	Spirogyra sp. 3 chl. 2 turns 40 μm diam. Chiba, 2002
Spirogyra sp. 3 chl. 2.5 turns 41 μm diam. Kashiwa Chiba, 2002
Spirogyra sp. 2 chl. 5-6 turns x 48 μm Riverside g.l. Fujioka Gunma, 2004	Spirogyra sp. 2 chl. 2 turns x 44 μm Shizuoka, 2001	Spirogyra sp. 2 chl. 3 turns x 43 μm Tochigi, 2001	Spirogyra sp. 2 chl. 3 turns 123 x 44 μm riverside park Abukuma river Fukushima, 2005
Spirogyra sp. 2 chl. 3 turns x 43 μm Zenko-ji Nagano, 2003	Spirogyra sp. 2 chl. 3.5 turns x 43 μm Muneoka Shiki Saitama, 2004	Spirogyra sp. 2 chl. 2.5 turns 80-87 x 42 μm rice field Shinano Nagano, 2004
Spirogyra sp. 1 chl. 2 turns 25-40 x 48 μm Watarase river Ashikaga Tochigi, 2004	Spirogyra sp. ?? chl. ??? nuc. 205 x 41 μm Japan, 1997	S. porticalis 16 samples 1 chl. 2-7 turns spherical nuc. 35-45 μm diam. 1997-2006
25-40 μm diam.
Spirogyra sp. 2 chl. 5 turns 38 μm diam. Higashi-sano Hakuba Nagano, 2004	Spirogyra sp. 5 samples 3-4 chl. 2-3 turns 34-38 μm diam. 1998-2006	Spirogyra sp. 9 samples 3 chl. spherical nuc. 29-33 μm diam. 1997-2006	Spirogyra sp. 3 samples 3-4 chl. 28-32 μm diam. 1998-99
Spirogyra sp. 4 chl. 1.5 turns 30 μm diam. Saitama, 2001	S. micropunctata 1 chl. 2-4 turns 36 μm diam. Japan, 1999	S. varians ? 11 samples 1 chl. 2-7.5 turns 35-37 μm diam. 2000-2006 Movies	Spirogyra sp. 1 chl. 4.5 turns 105 x 37 μm diam. Owada Park Saitama Saitama, 2005
S. daedaleoides or S. singularis ? 14 samples 1 chl. 3-5 turns 28-34 μm diam. 2001-2008	S. singularis 1 chl. 4 turns 35 μm diam. Iwatsuki Park Iwatsuki-ku Saitama, 2006
S. longata 1 chl. 3-3.5 turns conjugation 35 μm diam. Japan, 1998	S. longata 1 chl. 2.5-3 turns 30 μm diam. Matsubushi Saitama, 2003	S. longata ? 1 chl. 3.5-4 turns 30 μm diam. Igashira park Mooka Tochigi, 2004
Spirogyra sp. 1 chl. 7-10 turns 188-216 x 30 μm Sukawa highland Kurikoma mountain Akita, 2005	Spirogyra sp. 1 chl. 5-7 turns 87-110 x 27 μm Igashira park Mooka Tochigi, 2004	Spirogyra sp. 1 chl. 3 turns 88-102 x 28 μm Ichinose-enchi Norikura highland Nagano, 2005	Spirogyra sp. 1 chl. 2-2.5 turns 60-80 x 27 μm Gunma-no-suigo Itakura Gunma, 2006
Spirogyra sp. 1 chl. 2.5 turns 95 x 31 μm Kitayama park Higashi-Murayama Tokyo, 2006	Spirogyra sp. ? 1 chl. ?? turns 140 x 35 μm Oh-asoh Kumagaya Saitama, 2006

Please click on species name for more images.

Copyright Protist Information Server