Dirina Sorocarpa
''Dirina sorocarpa'' is a species of saxicolous (rock-dwelling), crustose lichen in the family Roccellaceae. Found in Cape Verde, it was formally described as a new species in 2013 by Anders Tehler and Damien Ertz. The lichen has a creamy white to white-brownish thallus measuring 0.1–0.5 mm thick and a chalk-like medulla. Its ascospores are 21–30 by 4–5 μm. The species epithet alludes to the fact that the ascocarp An ascocarp, or ascoma (), is the fruiting body ( sporocarp) of an ascomycete phylum fungus. It consists of very tightly interwoven hyphae and millions of embedded asci, each of which typically contains four to eight ascospores. Ascocarps are m ...s, if they are present, are often partially sorediate or are produced on the same regions of the thallus as the . References sorocarpa Lichen species Lichens described in 2013 Lichens of Macaronesia {{Arthoniomycetes-stub ...
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Saxicolous Lichen
A saxicolous lichen is a lichen that grows on rock. The prefix "sax" from the Latin means "rock" or "stone". Characteristics Saxicolous lichens exhibit very slow growth rates. They may develop on rock substrates for long periods of time, given the absence of external disturbances. The importance of the mineral composition of the rock substrate, as well as the elemental geochemistry Geochemistry is the science that uses the tools and principles of chemistry to explain the mechanisms behind major geological systems such as the Earth's crust and its oceans. The realm of geochemistry extends beyond the Earth, encompassing the ... is also important to the distribution of saxicolous lichens, but the relationship between the substrate influence on lichens, either chemical or textural, is still obscure. Communities of saxicolous lichens are often species-rich in terms of number. References Lichenology {{lichen-stub ...
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