Puccinia hieracii -rust fungus on mouse-ear hawkweed (Pilosella officinarum).
Puccinia hieracii -rust fungus on mouse-ear hawkweed (Pilosella officinarum). -- source link
#fungus#microfungi#microscopy#plant pathology#mycology#plant disease#puccinia#pilosella#urediniospore#parasite#basidiomycota