 | 2443-21. Shield lichen (Canoparmelia caroliniana) on a deciduous tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019Similar picturesSmall thumbnails | Use large thumbnails | View as slideshow |
| 2443-21. Shield lichen (Canoparmelia caroliniana) on a deciduous tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019Similar picturesSmall thumbnails | Use large thumbnails | View as slideshow |
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