 | 2654-05. Pepper-like lichen Sarcogyne regularis(?) with black cyanobacteria on sandstone in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2020Similar picturesSmall thumbnails | Use large thumbnails | View as slideshow |
| 2654-05. Pepper-like lichen Sarcogyne regularis(?) with black cyanobacteria on sandstone in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2020Similar picturesSmall thumbnails | Use large thumbnails | View as slideshow |
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