lichen
A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.fungi in the family Roccellaceae. It has five species. The genus was
circumscribed
In geometry, the circumscribed circle or circumcircle of a polygon is a circle that passes through all the vertices of the polygon. The center of this circle is called the circumcenter and its radius is called the circumradius.
Not every polyg ...
in 2014 by Damien Ernst, with '' Vigneronia spieri'' assigned as the type species. This species, originally described as ''Schismatomma spieri'' from collections made in the Galápagos Islands, has since been recorded from mainland Ecuador and the Antilles (
Curaçao
Curaçao ( ; ; pap, Kòrsou, ), officially the Country of Curaçao ( nl, Land Curaçao; pap, Pais Kòrsou), is a Lesser Antilles island country in the southern Caribbean Sea and the Dutch Caribbean region, about north of the Venezuela coast ...
). The genus is named after Ernst's wife, Nathalie Vigneron, who accompanied him on collecting trips.
''Vigneronia'' lichens are crustose, and have a smooth, thin, thallus lacking a cortex. The photobiont partner is trentepohlioid. Lichen products identified from members of the genus include roccellic acid, erythrin, and gyrophoric acid. The ascomata are in the form of elongated, measuring 0.5–4 by 0.3–1 mm in diameter.
Vigneronia cypressi
''Vigneronia'' is a genus of lichen-forming fungi in the family Roccellaceae. It has five species. The genus was circumscription (taxonomy), circumscribed in 2014 by Damien Ernst, with ''Vigneronia spieri'' assigned as the type species. This spec ...
French West Indies
The French West Indies or French Antilles (french: Antilles françaises, ; gcf, label=Antillean Creole, Antiy fwansez) are the parts of France located in the Antilles islands of the Caribbean:
* The two overseas departments of:
** Guadeloupe, ...