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Gamophyceae: Zygnematales: Desmidiaceae or Closteriaceae

Closterium toxon
W. West

Species: Cell body medium in size, slightly curved, centrally straight, gradually tapered toward ends, both ends truncated with rounded corners, 163-(190-350) μm long, 8-(8.4-13)-20 μm wide, L/W = 25-32; cell wall smooth, bands absent; chloroplasts with 5-7 pyrenoids (Illustrations of The Japanese Fresh-water Algae, 1977).
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Closterium
C. toxon
or C. subscoticum ?
288 x 15 μm
L/W=19.2
Oze-ga-hara
Katashina
Gunma, 2006
Closterium toxon
C. toxon
360 x 13 μm
L/W=27.7
Ko-numa
Tsukiyono
Gunma, 2007
Closterium toxon
C. toxon
242 x 13 μm
L/W=18.6
Ko-numa
Tsukiyono
Gunma, 2008
Closterium toxon
C. toxon
μm
L/W=
Kareki-numa m
Nikko
Tochigi, 2008.8
Closterium toxon
C. toxon
227 x 13.5 μm
L/W=16.8
Kareki-numa m
Nikko
Tochigi, 2008.9
Closterium toxon
C. toxon
175-207 x 10-11 μm
L/W=15.9-19.7
Omotsubo marsh
Tetta-cho
Okayama, 2004
Closterium toxon
C. toxon
174-220 x 10 μm
L/W=22.0
Omotsubo marsh
Tetta-cho
Okayama, 2004
Closterium toxon
C. toxon
107-155 x 7 μm
L/W=15.3-22.1
Omotsubo marsh
Tetta-cho
Okayama, 2004
Closterium toxon
C. toxon
260 x 9 μm
L/W=
Omotsubo m.1
Niimi
Okayama, 2006
Closterium
C. toxon
225 x 12 μm
L/W=19
Hiroshima, 1998
Movies
Closterium toxon
C. toxon
250 x 12 μm
L/W=
Kashibaru m.1
Karatsu
Saga, 2006
Closterium
C. toxon
324 x 10 μm
L/W=32.4
Kashibaru m.5
Karatsu
Saga, 2006
Closterium toxon
C. toxon
or C. subscoticum ?
273, 294 μm
L/W=23-24
Kashibaru m
Karatsu
Saga, 2008
Similar species -->> C. ulna; C. angustatum; C. praelongum;

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Closterium toxon
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