SriLankaLichens_Book_eng - page 46

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152 Apothecial disc brown.
Hymenium colourless 153
153
Epihymenium lacking
crystals. Pigmentation
not altered by KOH
Lecanora tropica
Zahlbr.
153
Epihymenium with
crystals. Pigmentation
dissolving or changing
colour in K
154
154
Apothecial margin
smooth to weakly
verruculose. Thallus
lacking gangaleoidin,
containing 2’-O-
methylperlatolic acid
Lecanora helva
Stizenb.
154
Apotecial margin
strongly verruculose.
Thallus containing
gangaleoidin, lacking
2’-O-methylperlatolic
acid
Lecanora leprosa
Fée