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Chlorophyceae: Tetrasporales: Tetrasporaceae

Apiocystis
Nägeli in Kützing 1849

Family: Colonial; cell body spherical with 2 or more pseudocilia (immobile); chloroplasts one, 2 or 3 in number, with or without pyrenoids (Illustrations of The Japanese Fresh-water Algae, 1977).
Genus: Colonies pear-shaped or irregular bulbous in a gelatinous matrix; epiphytic on other algae by a narrowed stalk of the colony; cells evenly scattered at the periphery of the gel, each bearing a pair of long pseudocilia emerging outward (Photomicrographs of the Freshwater Algae, vol. 3, 1985). Colonies small, ovoid in shape, attached to other substrates at one end (Illustrations of The Japanese Fresh-water Algae, 1977).
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Apiocystis
A. brauniana
or Tetrasporidium ?
cell 10 μm
Sanda
Hyogo, 2001
Apiocystis brauniana
A. brauniana
cell μm
Kinu-gawa g.p.
Takanezawa
Tochigi, 2004
Apiocystis brauniana
A. brauniana
cell 8-10 μm
pseudocilia visible
Aquatic botanical g.
Sawara
Chiba, 2004
Apiocystis brauniana
A. brauniana
cell 8-10 μm
pseudocilia visible
Nagaike park
Hachioji
Tokyo, 2005
Apiocystis brauniana
A. brauniana
cell 8 μm
Onnenai
Kushiro marsh
Hokkaido, 2005
Apiocystis brauniana
A. brauniana
cell 10-12 μm
Univ. A.V.M.
Obihiro
Hokkaido, 2005
Apiocystis
Apiocystis sp.
cell μm
Tsurugashima
Saitama, 2003
Apiocystis
A. brauniana ?
cell 8-10 μm
near Akai wetland
Aizuwakamatsu
Fukushima, 2005
Apiocystis brauniana
A. brauniana
cell 8 μm
Kanayama c.
Kiyose
Tokyo, 2007

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Apiocystis
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