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Melanotrema meiospermum (Nyl.) Frisch  
Family: Graphidaceae
[Ocellularia meiosperma (Nyl.) Hale,  more]
Melanotrema meiospermum image
Harrie Sipman  
Melanotrema meiospermum image
Melanotrema meiospermum image
Melanotrema meiospermum image