 A logical explanation for the occurrence of the distinct cortical sinuous ridges in "N. marinii" and "N. suffnessii" on Mesa Camacho is hybridization, which in lichens is rarely mentioned, and when it is, it usually is in context with chemical variation.or vegetative diasporas such as soredia ([soredium]) and isidia ([isidium]).In "Niebla", the chemical features are believed to be genetically conserved and closely linked to morphological features for each species, while less genetically linked features are suggested to be easily exchanged.