Heppia Arenacea
''Heppia arenacea'' is a species of terricolous lichen, terricolous (ground-dwelling) lichen in the family Lichinaceae. Discovered in Yemen, it is characterized by its sand-coloured thallus and the incorporation of soil particles throughout its vegetative (i.e., non-reproductive) parts. The lichen is found in soil crust communities over limestone and basaltic rock in desert habitats, as well as in partially sheltered areas between large boulders. Taxonomy ''Heppia arenacea'' was first species description, formally described by German lichenologist Matthias Schultz in 2005. The type (biology), type specimen was collected by the author in Wadi Asariah, Jabal Arays (Abyan Governorate) at an elevation of approximately ; there it was found growing on exposed soil over basaltic rock under an ''Anisotes trisulcus'' shrub. Description ''Heppia arenacea'' has a sand-coloured to pale ochre thallus, which can sometimes be slightly greyish-white and is somewhat gelatinous when wet. The t ...
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Terricolous Lichen
A terricolous lichen is a lichen that grows on the soil as a substrate. An example is some members of the genus ''Peltigera ''Peltigera'' is a genus of approximately 100 species of foliose lichens in the family Peltigeraceae. Commonly known as the dog or pelt lichens, species of ''Peltigera'' are often terricolous (growing on soil), but can also occur on moss, trees, ...''. References Lichenology {{lichen-stub ...
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