| Order: | Nostocales |
| Family: | Rivulariaceae |
| Ecology: | Wet depression along a gravelly road beside the railroad tracks on the way to the Bear River, Shelburne Falls, MA. |
| Order: | Nostocales |
| Family: | Rivulariaceae |
| Ecology: | Wet depression along a gravelly road beside the railroad tracks on the way to the Bear River, Shelburne Falls, MA. |
| Order: | Nostocales |
| Family: | Rivulariaceae |
| Ecology: | Wet depression along a gravelly road beside the railroad tracks on the way to the Bear River, Shelburne Falls, MA. |
| Order: | Nostocales |
| Family: | Rivulariaceae |
| Ecology: | Wet depression along a gravelly road beside the railroad tracks on the way to the Bear River, Shelburne Falls, MA. |
| Order: | Nostocales |
| Family: | Rivulariaceae |
| Ecology: | Wet depression along a gravelly road beside the railroad tracks on the way to the Bear River, Shelburne Falls, MA. |
| Order: | Nostocales |
| Family: | Rivulariaceae |
| Ecology: | Wet depression along a gravelly road beside the railroad tracks on the way to the Bear River, Shelburne Falls, MA. |
| Order: | Nostocales |
| Family: | Rivulariaceae |
| Ecology: | Wet depression along a gravelly road beside the railroad tracks on the way to the Bear River, Shelburne Falls, MA. |