Best Umbilicate
Umbilicaria pustulata is a foliose lichen in the rock-tripe group, attached to exposed stone by a central holdfast rather than across its entire lower surface. Its brownish to gray thallus has blister-like pustules and broad lobes, and it occurs on rocks in mountainous, boreal, and other cool or ope...
Why this score?
Dramatic blistered surface, alpine toughness, and rock-tripe heritage provide strong visual and cultural distinction.
Scoring methodology
Umbilicaria muehlenbergii is a foliose rock lichen with an umbilicate thallus attached to the substrate by a central holdfast. It commonly grows on exposed rock surfaces, especially in North America, and develops gray to brown lobes with a textured upper surface. The species is useful for readers st...
Why this score?
Intricate underside ridges and classic umbilicate form reward close study, but modest cultural recognition limits acclaim.
Scoring methodology
Umbilicaria hyperborea is a foliose, rock-dwelling lichen in the genus Umbilicaria. Its thallus is attached to stone by a central holdfast and expands into dark, leathery lobes, a structure commonly described as umbilicate. It occurs in cold exposed environments, including Arctic and alpine habitats...
Why this score?
Rugged Arctic rock adaptation and dense rhizines are notable, though dark coloration and remote occurrence reduce accessibility.
Scoring methodology
Dermatocarpon miniatum is an umbilicate foliose lichen that grows attached to rock by a central point. It has a leathery thallus that may appear reddish brown, with the outer portions extending away from the attachment point. The species is commonly found on calcareous rocks in the Northern Hemisphe...
Why this score?
Leathery reddish lobes and single-point attachment are distinctive, though small size and limestone restriction reduce broader interest.
Scoring methodology
