- Although most tribophyte genera are rare,
about
- 25 species of Tribonema are relatively
common
- in freshwater environments worldwide. The
- genus is most abundant in the spring and
fall
- when temperatures are cooler. Bright green
mats sometimes float on the surfaces of ditches, rivers, lakes,
pools, ponds, and bogs. Several species of Tribonema are
found in environments with pH values as high as 9.
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