Straigt curved or spiral needle-shaped cells up to 50 m long or more sometimes forming bundles. All types of water-body common. The plate shows two species.
Cocconeis Extremely common flat oval diatoms.10-30 micron long.clinging to plants stones and other substrada some times in almost continuous layer cleaned frustule 3 cells on an Oedogonium filament. RlPPLE WALLET : rE9VzDvqozvgbd2trCKitN4fSi6ENiHu41
Staurastrum Each half cell is triangular in end view,with three corners spines or arms.Cells vary up to 130 micron in length and are common in the plankton of lakes. RlPPLE WALLET : rE9VzDvqozvgbd2trCKitN4fSi6ENiHu41
Chodatella Like Oocystis in size and shape but with several selender bristles, usually at each end of the cell.Ponds lakes and slow rivers. RlPPLE WALLET : rE9VzDvqozvgbd2trCKitN4fSi6ENiHu41
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