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Gamophyceae: Zygnematales: Desmidiaceae or Closteriaceae

Closterium setaceum
Ehrenberg ex Ralfs 1848

Species [var. setaceum]: Cell body quickly attenuated toward both ends (cf. C. ralfsii), each extended part longer than spindle-shaped part at middle (cf. C. kuetzingii), 150-(252-528)-600 μm long, 6-(8.6-17) μm wide, L/W=30-33; cell wall transparent or slightly yellowish, finely striated (Illustrations of The Japanese Fresh-water Algae, 1977).
T=terminal; Tv=terminal vacuole
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Closterium setaceum
C. setaceum
610 x 16 μm
L/W=38.1
Ochiai-numa 2
Noshiro
Akita, 2007
Closterium setaceum
C. setaceum
μm
L/W=
Ko-numa 2
Minakami
Gunma, 2008
Closterium setaceum
C. setaceum
μm
L/W=
Kareki-numa
Nikko
Tochigi, 2008
Closterium setaceum
C. setaceum
410 x 10 μm
L/W=41
Karakemi marsh
Omachi
Nagano, 2006
Closterium
C. setaceum
366 x 10 μm
340 x 9 μm
L/W=37
Azami-ike
Norikura highland
Nagano, 2006
Closterium setaceum
C. setaceum
μm
L/W=
Azami-ike
Norikura highland
Nagano, 2007.11
Closterium setaceum
C. setaceum
344 x 9 μm
L/W=38.2
Mi-ike
Norikura highland
Nagano, 2007
Closterium setaceum
C. setaceum
μm
L/W=
Kannon-numa
Shimogo
Fukushima, 2008
Closterium setaceum
C. setaceum
338 x 10.5 μm
L/W=32
Koigakubo marsh
Tessei-cho
Okayama, 2004
Closterium
C. setaceum
var. setaceum
295 μm
L/W=37
Hiroshima, 1998
Movies
Closterium setaceum
C. setaceum
346 x 9.5 μm
L/W=36.4
Kashibaru marsh 5
Karatsu
Saga, 2006
Closterium setaceum
C. setaceum
404 x 10 μm
L/W=40.4
Kashibaru marsh 2
Karatsu
Saga, 2006
Closterium setaceum
C. setaceum
μm
L/W=
Kashibaru m.II
Karatsu
Saga, 2008
Closterium setaceum
C. setaceum
μm
L/W=
Kashibaru m.2-5
Karatsu
Saga, 2008
Closterium setaceum
C. setaceum
450 x 19 μm
L/W=24
USA, 1999
Closterium
C. setaceum
383 x 16 μm
L/W=24
Uruguay, 1999
Closterium setaceum
C. setaceum
var. ??
μm
L/W=
Lake Biwa
Maihara
Shiga, 2003
Closterium setaceum
C. setaceum ??
330 x 6 μm
L/W=
O-ike w. p.
Kasukabe
Saitama, 2004
Similar species -->> C. kuetzingii;

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Closterium setaceum
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