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Chlorophyceae: Volvocales: Volvocaceae
Volvocida: Volvocina: Volvocidae

 Pandorina morum
(Müller) Bory, 1824

Pandorina morum Species: Cells 8-17 μm; colony 20-50 μm to 250 μm; 16 cells as a tight sphere within clear matrix (How to know the protozoa, 1979). Colony barrel-shaped, 8- or 16-celled; cells wedge-shaped; chloroplast longitudinally striated; colony 20-42 μm across, 60 μm long; cells 8-17 μm diam. (Illustrated Guide, 1985). Sexual reproduction by isogamy (An Illustrated Guide to Freshwater Zooplankton in Japan, 2000). Sexual reproduction by iso- or anisogamy (Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983).

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Pandorina morum (Müller) Bory ?, a colony of 16 cells, μm long, μm wide, dividing cells present, daughter colonies 30 μm long, 25 μm wide, cells wedge-shaped μm, close together, x 400, x 640, Binnuma River, Saitama city (formerly Omiya City), Saitama Pref., Japan, August 4, 2000, by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640


After completion of cell divion

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