Parmotrema sancti-angeli (Lynge) Hale, 1974
Diagnostic description:
Parmotrema sancti-angeli is distinguished by the ciliate lobes, marginal and linear soralia, the presence of gyrophoric acid (medulla C+ rose or red) and sublageniform conidia 5−9 1.0 μm long. In P. indicum the thallus is robust and the conidia filiform, 8–12.5 μm long, while P. permutatum (Stirton) Hale has the lower medulla yellow, because the presence of secalonic acid A (Fleig 1997).
[Spielmann & Marcelli 2009]