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''Pediastrum duplex'' is a type species of fresh water green algae in the genus pediastrum. They form nonmotile coenobia (colonies) with a fixed number of cells. These coenobia are flat and have a circular shape. The cell bodies are polygonal, are granulated and have horn-like projections. They reproduce these autocolonies asexually. The colonies usually contain 8 to 32 cells, with examples of 4, 64 or 128 occurring rarely. ==Infraspecies== ''Pediastrum duplex brachylobum'' ''Pediastrum duplex clathratum'' ''Pediastrum duplex cohaerens'' ''Pediastrum duplex duplex'' ''Pediastrum duplex'' f. ''denticulatum'' Isabella & R.J. Patel ''Pediastrum duplex gracillimum'' ''Pediastrum duplex regulosum'' ''Pediastrum duplex reticulatum'' ''Pediastrum duplex rotundatum'' ''Pediastrum duplex'' var. ''asperum'' ''Pediastrum duplex'' var. ''clathratum'' (A. Braun) Lagerheim, 1882 ''Pediastrum duplex'' var. ''convexum'' W. Krieger ''Pediastrum duplex'' var. ''cornutum'' ''Pediastrum duplex'' var. ''gracillimum'' W. West & G.S. West ''Pediastrum duplex'' var. ''irregulare'' G.R. Hegde & K. Somanna ''Pediastrum duplex'' var. ''longicorne'' W. Krieger ''Pediastrum duplex'' var. ''reticulatum'' Lagerheim, 1882 ''Pediastrum duplex'' var. ''rugulosum'' Raciborski ''Pediastrum duplex'' var. ''subgranulatum'' Raciborski 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Pediastrum duplex」の詳細全文を読む スポンサード リンク
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