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Chlorophyceae: Chlorococcales: Scenedesmaceae

Scenedesmus protuberans
Fritsch

Genus: Colonies of 4 (or 2, 8, 16) cells attached side by side, arranged linearly or zigzag; cell body elliptical or spindle or crescent in shape; terminal cells with spiny projections in many species; cell wall usually smooth, but in some species granulated or dented or ridged (Illustrations of The Japanese Fresh-water Algae, 1977).
Species:
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Scenedesmus
S. protuberans
cell 30 x 6 μm
L/W=6
S/L=1.2
Japan, 1997
Scenedesmus protuberans
S. protuberans
cell 24 x 6 μm
near Ayu river
Fujioka
Gunma, 2004
Scenedesmus
S. protuberans
cell 15 x 3 μm
L/W=5
S/L=1.0
199?-2001
Scenedesmus
S. protuberans
cell 18 x 5.5 μm
L/W=3.3
S/L=0.8
Uruguay, 1999
Scenedesmus protuberans
S. protuberans
or S. opoliensis ?
cell 18 x 5.5 μm
L/W=3.3
S/L=1.0
Otawara
Tochigi, 2000
Scenedesmus protuberans
S. protuberans
cell 21 x 8 μm
L/W=2.6
S/L=0.9
Dewa p., Koshigaya
Saitama, 2001
Scenedesmus protuberans
S. protuberans
cell 19-20 x 6.5 μm
L/W=2.9-3.1
S/L=1.0
Koshigaya
Saitama, 2001
Scenedesmus protuberans
S. protuberans
or S. opoliensis ?
cell 18 x 5 μm
L/W=3.6
S/L=1.1
Bessho numa
Saitama, 2001
Scenedesmus protuberans
S. protuberans
or S. opoliensis ?
cell 16 x 5 μm
L/W=3.2
S/L=1.1
Koshigaya
Saitama, 2001
Scenedesmus
S. protuberans
cell 13 x 3.5 μm
L/W=3.7
S/L=1.1
??, 2000
Scenedesmus quadricauda
S. protuberans
cell 18 x 3 μm
L/W=6.0
S/L=0.9
Abiko
Chiba, 2000
Scenedesmus
S. protuberans
cell 16 x 5 μm
L/W=3.2
S/L=0.9
Matsumoto
Nagano, 2001
Scenedesmus quadricauda
S. protuberans
or S. opoliensis ?
cell 19 x 5 μm
L/W=3.8
S/L=0.8
Abiko
Chiba, 2000
Scenedesmus protuberans
S. protuberans
cell μm
L/W=
S/L=
O-ike park
Yabuki
Fukushima, 2003
Scenedesmus protuberans
S. protuberans
cell 20 x 5 μm
L/W=
S/L=
Sannoh park
Nishi-ku
Saitama, 2004
Scenedesmus protuberans
S. protuberans
cell 17 x 4 μm
L/W=4.3
S/L=0.9
Koriyama
Fukushima, 2001
Scenedesmus protuberans
S. protuberans
cell 20-22 x 5 μm
L/W=
S/L=
Noda
Namegawa
Saitama, 2004
Scenedesmus
S. protuberans ?
or S. quadricauda ?
L/W=
Sannoh-bori
Sannoh Park
Saitama, 2005
Similar species -->> S. opoliensis; S. quadricauda;

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Scenedesmus protuberans
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