Species of lichen
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Neoprotoparmelia capitata is a species of corticolous (bark-dwelling) and crustose lichen in the family Parmeliaceae. It is found in eastern North America.
Taxonomy.
The lichen was first formally described by lichenologist James Lendemer in 2008, as a species of "Protoparmelia". The type specimen was collected by Richard C. Harris near Archbold Biological Station in Florida, where it was found growing on "Carya floridana" in scrubland. The specific epithet "capitata" refers to the characteristic large convex hemispherical soralia. The species was moved to genus "Maronina" in 2017. In 2018, the taxon was transferred to "Neoprotoparmelia", a genus newly circumscribed to contain a group of former "Maronina" species that had been previously recognized as an independent lineage.
Description.
"Neoprotoparmelia capitata" has a grey to greyish-brown, shiny and smooth to cracked crustose thallus. It often has a dark prothallus (visible as a line around the thallus margin). Soredia typically measure between 16 and 29 μm in diameter; they tend to clump together to form larger head-like ("capitate") soralia that are 0.8–1.25 mm in diameter, and 0.5–0.8 mm tall. Apothecia are rare, and pycnidia are not present. In its medulla, the lichen contains the secondary compounds alectoronic acid and traces of α-collatolic acid
Habitat and distribution.
"Neoprotoparmelia capitata" grows on the bark of hardwood trees in regions of the coastal plain of eastern North America. It tends to grows in subtropical areas, and at the time of its original publication, had been recorded from Alabama, Georgia, and Florida.
References.
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