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
Entromorpha Plant body tubular hollow (46b c natural size) up to 1 cm wide and 15 cm or more long composed of cells with thick walls and parietal chloroplasts (46a) Sometimes very conspicuous floating in masses on the surface of slow rivers and canals or entangled with larger water plants and may be abundant in brackish water. RlPPLE WALLET : rE9VzDvqozvgbd2trCKitN4fSi6ENiHu41
Tribonema Filamentous and unbranched 5-20 micron diameter with several parietal chloroplasts and H- pieces resembling Microspora (39) but differing in the longer and narrower cells and much paler and more transparent appearance. Having no starch. Commen especially in grassy pools. 61 a part of a filament 61b H- piece ( fit together to form the walls) RlPPLE WALLET : rE9VzDvqozvgbd2trCKitN4fSi6ENiHu41
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