Leaf rust (Coleosporium sp.) on Amsonia (Amsonia sp.)
| 4 Images |
Paul Bachi University of Kentucky Research and Education Center |
Underside of infected leaf with rust pustules. |
Paul Bachi University of Kentucky Research and Education Center |
Rust pustules with urediniospores on lower leaf surface. |
Paul Bachi University of Kentucky Research and Education Center |
Rust pustules with urediniospores seen in dark-field observation. |
Paul Bachi University of Kentucky Research and Education Center |
Close-up of urediniospores showing echinulate outer surface. |
