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Gamophyceae: Zygnematales: Zygnemataceae

Spirogyra
Link 1820

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).
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50-100 μm diam.
Spirogyra
S. ternata ?
? chl. 1.5 turns
x 92 μm
Oura central p.
Oura
Saitama, 2006
Spirogyra
S. ternata
11 samples
3-4 chl. 1-3 turns
radiate nuc.
69-88 μm diam.
1997-2006
Spirogyra
S. ternata ?
3 chl. 1.5 turns
x 88 μm
Konuma
Sakado
Saitama, 2004
Spirogyra
S. ternata ?
3 chl. 1.5 turns
x 80 μm
Tochigi, 2001
Spirogyra
Spirogyra sp.
3 chl. 2.5 turns
x 82 μm
Futago-tamagawa
Setagaya ku
Tokyo, 2004
Spirogyra
Spirogyra sp.
6 chl. 1 turn
92-216 x 82 μm
Nagaike park
Hachioji
Tokyo, 2005
Spirogyra
Spirogyra sp.
2 chl. 3.5 turns
x 77 μm
Kamishiro
Hakuba
Nagano, 2004
Spirogyra
Spirogyra sp.
2 chl. 2.5 turns
x 66 μm
water treatment c.
Sakado
Saitama, 2004
Spirogyra
S. majuscula
6 chl. 1.5 turns
gelatinous sheath
75 μm diam.
Fujimi
Saitama, 2000
Movies
Spirogyra
S. majuscula
6 chl. 1 turns
gelatinous sheath
69 μm diam.
Yokohama
Kanagawa, 2002
Spirogyra
Spirogyra sp.
4 chl. 1.5 turns
disc/ovoid nuc.
x 65 μm
Tochigi, 2001
Spirogyra
Spirogyra sp.
7 chl. 0.5 turns
x 63 μm
Toneri Park
Tokyo, 2001
Spirogyra
Spirogyra sp.
4 chl. 2 turns
x 58 μm
Abiko
Chiba, 2000
Spirogyra
Spirogyra sp.
4 chl. 1.5-2 turns
spherical nuc. ?
153 x 50 μm
Japan, 1998
Spirogyra
Spirogyra sp.
4 chl. 1 turns
disc-like nuc.
320 x 50 μm
Japan, 1998
Spirogyra
S. pulchrifigurata ?
3 chl. 2.5 turns
x 54 μm
Tochigi, 2001
Spirogyra pulchrifigurata
S. pulchrifigurata ?
3 chl. 1.5-2 turns
x 56 μm
Tama river
Chofu
Tokyo, 2004
Spirogyra
S. distenta
5 samples
2 chl. 2-3 turns
spherical nuc.
112 x 53 μm
1998-2004
Spirogyra
Spirogyra sp. ?
1 chl. 7.5 turns
125 x 79 μm
riverside p.
Abukuma river
Fukushima, 2005
Spirogyra
Spirogyra sp. ?
1 chl. 5 turns
x 72 μm
Kinu river
Takanezawa
Tochigi, 2004
Spirogyra
Spirogyra sp. ?
1 chl. 5.5 turns
x 70 μm
Tamogi-ike
Nabekura h.l.
Nagano, 2008
Spirogyra
Spirogyra sp.
1 chl. 5.5 turns
disc/ovoid nuc.
160 x 65 μm
Kuroiso
Tochigi, 1999
Movies
Spirogyra
Spirogyra sp. ?
3 irregul. chl.
x 51 μm
Saitama, 2001
Spirogyra
Spirogyra sp. ?
3 irregul. chl.
x 51 μm
Nakano-numa p.
Oura
Saitama, 2006
Spirogyra
Spirogyra sp.
S. ternata ?
3 chl. 1.5 turns
85 x 50 μm
Aizu Recreation p.
Aizuwakamatsu
Fukushima, 2005

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Spirogyra
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