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Page number:72 
Remarks (internal):So far T. cinereovirens is the only Toninia species known from South Korea. It has often been confused with T. squalida (Ach.) A. Massal., which differs in having acicular, 3-7 septate spores and non-imbricate squamulose thallus with margins ±appressed to the substratum. For further descriptions see Timdal (1991). 
Description type:Non-original description 
Description:Toninia cinereovirens (Schaer.) A. Massal., Ric. auton. lich. crost. (Verona): 107, 1852 Fig. 2F
? Lecidea cinereovirens Schaer., Lich. helv. spicil. 3: 109, 1828
Thallus saxicolous, squamulose, indeterminate. Squamules up to 2 mm diam., contiguous to irregularly imbricate with free to ascending darker gray margin. Upper side brown, epruinose, lacking pores and pseudocyphellae. Under surface pale brownish. Apothecia up to 0.8 mm diam., epruinose. Epithecium olivaceous brown, K-, N-. Spores hyaline, bacilliform, 1-3 septate, 14-26 x 3-4 µm.
Chemistry - Spot test reactions: thallus K-, C-, KC-, P-. Secondary metabolites: None detected.
Ecology & distribution - The collection was found at 2 m along the coast growing over non-calcareous rocks. Known also from Europe (Timdal 1991); new to East Asia.

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