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Chlorophyceae: Chlorococcales: Oocystaceae

Eremosphaera
de Bary 1858 (Algaebase, John et al., The Freshwater Algal Flora of the British Isles, 2002)

Family: Unicells or colonies of non-fixed number of cells; cell body variable in shape; one or more chloroplasts variable in shape; asexual reproduction by autospore or autocoenobium (Illustrations of The Japanese Fresh-water Algae, 1977).
Genus: Unicellular, planktonic; cell body large, spherical in shape; many chloroplasts disc- or lens-shaped, with a pyrenoid, parietal or radially arranged from the center (Guide book to the "Photomicrographs of the Freshwater Algae", 1998). 100-200 μm in diam. (Illustrations of The Japanese Fresh-water Algae, 1977).
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Cell body spherical
Eremosphaera
E. viridis
74 μm φ
Kenashitai
Hakkoda mountain
Aomori, 2005
Eremosphaera
E. viridis
156-190 μm φ
Tashirodaira m.
Hakkoda mountain
Aomori, 2005
Eremosphaera viridis
E. viridis
157 μm φ
Tashirodaira m.5
Hakkoda mountain
Aomori, 2006
Eremosphaera viridis
E. viridis
μm φ
near Hachimantai Mt.
Hachimantai
Iwate, 2007
Eremosphaera viridis
E. viridis
98 μm φ
Sukawa highland
Kurikoma mt.
Iwate, 2007
Eremosphaera
E. viridis
89 μm φ
Sukawa highland-1
Kurikoma mountain
Akita, 2005
Eremosphaera
E. viridis
88 μm φ
Sukawa highland-2
Kurikoma mountain
Akita, 2005
Eremosphaera
E. viridis
91 μm φ
Mida-ga-hara
Gassan
Yamagata, 2005
Eremosphaera viridis
E. viridis
230, 158 μm φ
Numa-no-hara m.
Madarao highland
Niigata, 2005
Eremosphaera
E. viridis
100 μm φ
Oze-shokubutu k.m.
Katashina
Gunma, 2006
Eremosphaera viridis
E. viridis
μm φ
Ayamedaira
Katashina
Gunma, 2006
Eremosphaera viridis
E. viridis
135-176 μm φ
Numappara marsh
Kuroiso
Tochigi, 2003
Eremosphaera viridis
E. viridis
dividing cell
182 μm φ
Numappara marsh
Kuroiso
Tochigi, 2003
Eremosphaera viridis
E. viridis
dividing cell
μm φ
Kareki-numa
Nikko
Tochigi, 2008
Eremosphaera
E. viridis
123 μm φ
Kamino-tanbo
Tsugaike highland
Nagano, 2006
Eremosphaera
E. viridis
92 μm φ
Tanohara marsh
Shiga highland
Nagano, 2004
Eremosphaera viridis
E. viridis
70 μm φ
Tanohara marsh
Shiga highland
Nagano, 2005
Eremosphaera viridis
E. viridis
80 μm φ
Tanohara marsh
Shiga highland
Nagano, 2006
Eremosphaera
E. viridis
43 μm φ
Hikage marsh
Shiga highland
Nagano, 2005
Eremosphaera viridis
E. viridis
45 μm φ
Hikage marsh
Shiga highland
Nagano, 2006
Eremosphaera viridis
E. viridis
45 μm φ
Iyari marsh
Omachi
Nagano, 2006
Eremosphaera viridis
E. viridis
μm φ
near Chigo-ike
Shiga highland
Nagano, 2008
Eremosphaera viridis
E. viridis
166 μm φ
Ichinose-enchi
Norikura highland
Nagano, 2005
Eremosphaera viridis
E. viridis
225 μm φ
Ichinose-enchi
Norikura highland
Nagano, 2006
Eremosphaera
E. viridis
43 μm φ
Ushidome-ike
Norikura highland
Nagano, 2005
Eremosphaera viridis
E. viridis
45 μm φ
Ushidome-ike
Norikura highland
Nagano, 2006
Eremosphaera viridis
E. viridis
157 μm φ
Kodanuki marsh
Fujinomiya
Shizuoka, 2006
Eremosphaera
E. viridis ?
138 x 118 μm
Imou bog
Toyohashi
Aichi, 2004
Cell body broadly ellipsoidal with rounded apices
Eremosphaera
E. gigas ?
57 x 46 μm φ
Yukawa-numa
Nishiwaga
Iwate, 2007
Eremosphaera
E. gigas ?
μm φ
Ishinazaka
Furukawa
Miyagi, 2003
Eremosphaera
E. gigas ?
μm φ
Namegawa
Saitama, 2003
Cell body ellipsoidal, apices concave
Eremosphaera
E. viridis ?
130 x 110 μm
Ikenokochi marsh
Tsuruga
Fukui, 2004
Eremosphaera
E. viridis ?
116 x 100 μm
Kabuto-yama
Nishi-no-miya
Hyogo, 2004
Eremosphaera
E. viridis ?
136 x 117 μm
Senuki
Nasu
Tochigi, 2004
Eremosphaera
E. viridis ?
125 x 103 μm
Naruto-Togane c.p.c.
Sanmu
Chiba, 2006
Eremosphaera viridis
E. viridis ?
μm
near Bungo-Mori R.S.
Kusu
Oita, 2008
???
Oocystis
Eremosphaera sp.
70 x 57 μm
near City Hall
Fujimi
Saitama, 2004
Eremosphaera
Eremosphaera sp. ?
μm φ
Riverside green l.
Sawara
Chiba, 2004
xxxx
Eremosphaera sp. ?
μm
Ogose
Saitama, 2003
Oocystis
Eremosphaera sp. ?
stock Sog-2
27-46 x 21-44 μm
Ogose
Saitama, 2003
Similar genera -->> Botrydiopsis; Oocystis;

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Eremosphaera
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