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Vulpicida pinastri

Vulpicida pinastri (Scop.) J.-E. Mattsson & M.J. Lai

Cetraria pinastri (Scop.) A. Gray

Tuckermannopsis pinastri (Scop.) Hale

Powdered Sunshine Lichen

KingdomFungiMushrooms, lichens, gel fungi, yeasts, and molds; also called eukaryotes
DivisionAscomycotaSac fungi
SubdivisionPezizomycotinaSac fungi with filaments
ClassLecanoromycetes“Lichenized” fungi
OrderLecanoralesMostly lichen-forming fungi
SuborderLecanorineaeLichens
FamilyParmeliaceaeIncludes many common lichens such as Xanthoparamelia, Usnea, Parmotrema, and Hypotrachyna
GenusVulpicida
Speciespinastri

About plant names...

Powered sunshine lichen is named for its yellow powder-like surface.

Identification: The photo here is a highly dubious ID, and potentially misleading, since powdered sunshine lichen has yellow fringes, rather than these brown or black fringes. Only the shape is similar. This photo was taken in late winter. This is a foliose (leaflike) lichen, and while some lichens tend to lay flat against their substrates, this one is more wrinkled and loosely attached. The whole surface may be yellow, or just the edges. Fruiting bodies (apothecia) are uncommon.

Online References:

Vulpicida pinastri on Stephen Sharnoff Photography

Vulpicida pinastri at Alan Silverside's Lichen Pages on LastDragon.org

Vulpicida pinastri at the Consortium of North American Lichen Herbaria

Vulpicida pinastri on the Stridvall Family Domain

Vulpicida pinastri from The Lichenologist (technical article on conserving this species)

References:

Walewski, Joe, Lichens of the North Woods, Kollath+Stensaas Publishing, 2007, p. 129

Vulpicida pinastri description by Thomas H. Kent, last updated 16 Aug 2013.

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Vulpicida pinastri (Powdered Sunshine Lichen)

4/7/2010 · Nashua River Rail Trail, Groton, MA
≈ 7 × 4½" (17 × 11 cm) ID is uncertain