Leaf spots - under surface - close-up

描述：

Longitude (deg): -0.8. Latitude (deg): 51.4. Longitude (deg/min): 0° 50' W. Latitude (deg/min): 51° 30' N. Vice county name: Berks. Vice county no.: 22. Country: England. Stage: Anamorph. Associated species: Viola odorata. Identified by: Malcolm Storey. Comment: on leaf-spots on Sweet Violet leaves. Category: standard photograph or close-up. Photographic equipment used: Canon EOS400D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens.