Collection location: Parque Nacional Queulat, Aisén, Chile [Click for map]
Found this just outside the park in rainforest scrub in river floodplain. Very rich epiphytic moss and lichen community on small trunks and twigs in sheltered tangled scrub.
Distinguishing characteristics: gray-brown, marginal cortex eroded, dark brown tomentose below with large conspicuous cyphellae.
There is only one species with strictly marginal soredia, Sticta sublimbata. The “soredia” are the result of disintigration of minute granular isidia on and just below the margins.
(I will photograph my herbarium specimen when I find it.)
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