Cora

When this lichen is in wet conditions such as here, the algal component turns the white species green. Cayambi_coca Park, Ecuadorian Andes.

Lichen, in the Monteverde Reserve, I forget which trail - Sendero Wilford Guindon, I think. Among moss, on a fallen log. ID thanks to Liquenes de Costa Rica Lichens, Umana and Sipman.

Siberia, San Jose, Costa Rica

Dictyonema glabratum. This neotropical species complex is a rare Cyanolichen, a symbiosis between a basidiomycetes fungus and a cyanobacteria. Photos from altitude in Ecuador.