portrait

Description:

Chrysophyte. This cell was not identified to genus. It contains a plastid with chlorophylls a and c, a contractile vacuole is evident at the top of the cell, and the cell is surrounded in an organic wall. although these cells were common in some locations, no motile forms corresponding to these cells were seen. Differential interference contrast. Material from Nymph Creek and Nymph Lake, thermal sites within Yellowstone National Park, photograph by Kathy Sheehan and David Patterson.