Fig. 75. (a) Example of cleaned oceanic sediment. (b) Epipsammic diatoms from a freshwater lake. (c),(d) Epipsammic diatoms from marine sand. (e) Epiphytes from feshwater Cladophora. (f) Epiphytes from freshwater Phragmites.
Songbirds of 2017 ~ Wood Warblers
6 years ago
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