Section [ Ornatae ]: Semicells circular, ellipsoid, reniform; cell surface granulated or spiny (Illustrations of The Japanese Fresh-water Algae, 1977).
Species[ var. logiense]: Cell body slightly longer than width, 59-65 μm long, 48-53 μm wide, isthmus 16-22.4 μm wide; semicells reniform, basal corners rounded, with 2 pyrenoids. [f. expansa]: Cell body slightly longer than width, 64.4-67 μm long, 50.4-53 μm wide, isthmus 16.8-18 μm wide; semicells reniform, basal corners rounded, apex broader than that of var. logiense; cell wall covered with many granules (Illustrations of The Japanese Fresh-water Algae, 1977).
Google Image Search
| var. logiense: Apical area elliptical; 59-65 μm long, 48-53 μm wide | |||
C. logiense var. logiense 54 x 44 μm near Takao-sakura p. Kitamoto Saitama, 2005 |
C. logiense var. logiense or C. reniforme ? 61 x 44 μm Uruguay, 1999 |
C. logiense var. logiense or C. reniforme ? 67 x 57 μm 70 x 59 μm Komado marsh Showa and Tajima Fukushima, 2004 |
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| f. expansa: Apical flat area wider than v. logiense; 64-67 μm long, 50-53 μm wide | |||
C. logiense f. expansa 82 x 40 μm Uruguay, 1999 |
C. logiense f. expansa ? 70 x 60 μm Uruguay, 1999 |
C. logiense f. expansa 70 x 65 μm Konuma Sakado Saitama, 2004 |
C. logiense f. expansa 65 x 57 μm near City Hall Fujimi Saitama, 2004 |
C. logiense f. expansa 69 x 60 μm Koegawa Konan Saitama, 2004 |
C. logiense f. expansa 71 x 58 μm Miyatoko m.1 Minami-Aizu Fukushima, 2008  |
C. logiense f. expansa 65 x 56 μm Kurihashi Saitama, 2001 |
C. logiense f. expansa ? 55 x 47 μm Japan, 1999 |
C. logiense f. expansa ? 50 x 45 μm Takao-sakura p. Kitamoto Saitama, 2005 |
C. logiense or quadrum ? 60 x 60 μm Hiroshima, 1998 |
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