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Gamophyceae: Zygnematales: Desmidiaceae

Staurastrum pseudosebaldi
Wille

Subgenus: with arm-like projections (Illustrations of The Japanese Fresh-water Algae, 1977)
Species [var. pseudosebaldi]: Cell body cylindrical, 39 μm long, 50.4 μm wide, isthmus 11 μm; in apical view, four dichotomous short spines arranged in each margin; a single line of dented projections present near the isthmus in each semicell.
[var. basidenticulatum]: Cell body smaller than var. pseudosebaldi, 44 μm long, 51 μm wide, isthmus 11 μm wide; in apical view, four dichotomous warts arranged in each margin; two lines of short spines present near the isthmus in each semicell.
[var. simplicius]: Cel lbody small, 32.3 μm long, 51-52 μm (including arms), isthmus 8.6 μm wide; in apical view, short spiny warts arranged in each margin; a single line of dented projections present near the isthmus in each semicell (Illustrations of The Japanese Fresh-water Algae, 1977)
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var. pseudosebaldi
Staurastrum pseudosebaldi
v. pseudosebaldi ?
μm
Maimeno-ike 3
Norikura highland
Nagano, 2007
var. basidenticulatum
Staurastrum pseudosebaldi
v. basidenticulatum
42 x 50 μm
Tashirodaira m.5
Hakkoda mountain
Aomori, 2006
Staurastrum pseudosebaldi
v. basidenticulatum
42 x 42 μm
Maimeno-ike
Norikura highland
Nagano, 2006
Staurastrum
v. basidenticulatum
39 x 46 μm
Maimeno-ike
Norikura highland
Nagano, 2006
Staurastrum pseudosebaldi
v. basidenticulatum
μm
Maimeno-ike
Norikura highland
Nagano, 2007.11
Staurastrum
v. basidenticulatum
32 x 40 μm
Kashibaru m3
Karatsu
Saga, 2006
Staurastrum pseudosebaldi
v. basidenticulatum
42 x 50 μm
Dojo-ike
Norikura highland
Nagano, 2006
Staurastrum pseudosebaldi
v. basidenticulatum
μm
Dojo-ike
Norikura highland
Nagano, 2007.11
Staurastrum
v. basidenticulatum
41 x 53 μm
Azami-ike
Norikura highland
Nagano, 2006
var. simplicius
Staurastrum pseudosebaldi
S pseudosebaldi
35 x 35 μm
Kodanuki marsh
Fujinomiya
Shizuoka, 2006
Staurastrum pseudosebaldi
v. simplicius
32 x 47 μm
near Omine-numa
Minakami
Gunma, 2006
Staurastrum pseudosebaldi
v. simplicius
μm
Ko-numa
Minakami
Gunma, 2008
Staurastrum pseudosebaldi
v. simplicius
μm
Azami-ike 5
Norikura highland
Nagano, 2007
Staurastrum pseudosebaldi
v. simplicius ?
35 x 45 μm
Ohnuma
Nasu-shiobara
Tochigi, 2006
Staurastrum pseudosebaldi
v. simplicius ?
25 x 33 μm
Okubo Ryoke
Akigase park
Saitama, 2005
S. pseudosebaldi or other species ?
Staurastrum pseudosebaldi
S pseudosebaldi
μm
Hiroshima Univ.
Hiroshima, 1998
Movies
Staurastrum
S pseudosebaldi
μm
Daidarabotchi-ike
Iizuna-kogen
Nagano, 2003
Staurastrum
S pseudosebaldi ?
29 x 36 μm
Univ. A.V.M.
Obihiro
Hokkaido, 2005
Staurastrum
S pseudosebaldi ?
or S. manfeldtii ?
32 x 31 μm
Aizu Recreation p.
Aizuwakamatsu
Fukushima, 2005
Staurastrum pseudosebaldi
S pseudosebaldi
or S. manfeldtii ?
μm
Umi-no-nakamichi
Fukuoka, 2001
Staurastrum pseudosebaldi
S pseudosebaldi
or S. manfeldtii ?
Vermont-Maine
U.S.A., 1999
Staurastrum pseudosebaldi
S pseudosebaldi ?
20 x 33 μm
Saiko
Toda
Saitama, 2005
Staurastrum pseudosebaldi
S pseudosebaldi
or anatinum ?
μm
Showa Memorial p.
Tokyo, 2001
Staurastrum
S pseudosebaldi
or anatinum ?
stock Sua-2
Akigase Park
Saitama, 2002
Staurastrum
S pseudosebaldi
or anatinum ?
μm
Hasuda
Saitama, 2002
Staurastrum
S pseudosebaldi
or S. longiradiatum ?
μm
Otto-Numa
Ibaraki, 2002
Staurastrum
S pseudosebaldi
or S. gracile ?
32 x 47 μm
Imou bog
Toyohashi
Aichi, 2004
Staurastrum
S pseudosebaldi
or S. gracile ?
μm
Higashi-sano
Hakuba
Nagano, 2004
Staurastrum
S pseudosebaldi ?
29 x 39 μm
water reservoir
near Yamaguchi Univ.
Yamaguchi, 2004
Similar species -->> S. sebaldi;

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Staurastrum pseudosebaldi
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