Verrucula arnoldaria

Verrucula arnoldaria
	Verrucula arnoldaria (darkened parts of thallus) growing on Calogaya arnoldii
Scientific classification
Kingdom:	Fungi
Division:	Ascomycota
Class:	Eurotiomycetes
Order:	Verrucariales
Family:	Verrucariaceae
Genus:	Verrucula
Species:	V. arnoldaria
Binomial name
	Verrucula arnoldaria; Nav.-Ros. & Cl.Roux (2007)

Verrucula arnoldaria is a rare species of lichenicolous (lichen-dwelling) lichen in the family Verrucariaceae. It grows parasitically on the thallus of the rock-dwelling, crustose lichen Calogaya arnoldii.^[1] The species was formally described as new to science in 2007 by lichenologists Père Navarro-Rosinés and Claude Roux, from specimens collected in Vaucluse, France.^[2] It has also been recorded from Italy.^[3] The lichen has a thick brownish-grey, areolate thallus that roughly maintains the shape of its underlying host. The thallus is covered with a crystalline pruina. It makes ellipsoid spores that measure up to about 15 μm long. Its host grows on calciferous rocks and calciferous schists.^[4]

References

^ Diederich, Paul; Lawrey, James D.; Ertz, Damien (2018). "The 2018 classification and checklist of lichenicolous fungi, with 2000 non-lichenized, obligately lichenicolous taxa". The Bryologist. 121 (3): 340–425 [366]. doi:10.1639/0007-2745-121.3.340. S2CID 92396850.
^ Navarro-Rosinés, P.; Roux, C.; Gueidan, C. (2007). "La generoj Verrucula kaj Verruculopsis (Verrucariaceae, Verrucariales)". Bulletin de la Société Linnéene de Provence (in Esperanto). 58: 133–180.
^ Nimis, Pier Luigi (2016). The Lichens of Italy. A Second Annotated Catalogue. Trieste: Edizioni Università di Trieste. p. 543. ISBN 978-88-8303-755-9.
^ Nimis, Pier Luigi; Hafellner, Josef; Roux, Claude; Clerc, Philippe; Mayrhofer, Helmut; Martellos, Stefano; Bilovitz, Peter O. (2018). "The lichens of the Alps – an annotated checklist". MycoKeys. 31: 420. doi:10.3897/mycokeys.31.23568.

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