Thallus of lichen species studied in the present investigation.

<p><b>a</b>: <i>Dermatocarpon vellereum</i>; <b>b</b>: <i>Umbilicaria vellea</i>; <b>c</b>: <i>Rhizoplaca chrysoleuca</i>; <b>d</b>: <i>Rhizoplaca melanophthalma</i>; <b>e</b>: <i>Pleopsidium flavum</i>; <b>f</b>: <i>Xanthoparmelia mexicana</i>; <b>g</b>: <i>Acarospora badiofusca</i>; <b>h</b>: <i>Xanthoria elegans</i>; <b>i</b>: <i>Lecanora frustulosa</i>; <b>j</b>: <i>Lobothallia alphoplaca</i>; <b>k</b>: <i>Physconia muscigena</i>; <b>l</b>: <i>Melanelia disjuncta</i>; <b>m</b>: <i>Xanthoparmelia stenophylla</i>; <b>n</b>: <i>Peccania coralloides</i>.