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| Collection: | RMRS Archive Images |
| Keywords: |
canker forest pathology |
| Organisms: | aspen |
| Location: | Black Hills N.F.; SD; United States |
| Description: | Ceratocystis canker |
| Date: | 7/7/1965 |
| Collection: | RMRS Archive Images |
| Keywords: |
canker forest pathology |
| Organisms: | ponderosa pine |
| Location: | [nr] Nemo, Black Hills N.F.; SD; United States |
| Description: | Peridermium harknessii on Pinus ponderosa |
| Date: | 7/21/1936 |
