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Lecanora oreinoides

 

Sunken rim-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
FamilyLecanoraceaeLichenized fungi includes many genera, named after Lecanora
GenusLecanoraMeans "having a light-colored margin of apothecium formed by thallus" (from Stearn's Botanical Latin)
Speciesoreinoides

About plant names...

Sunken rim-lichen is native to North America.

Identification: Lichen is whitish to pale gray. It appears as a thin layer directly on rock surfaces (crustose), looking a bit like paint that dried and cracked. Its fruiting bodies (apothecia) are black and slightly sunken. There may be more than one per “tile.”

Online References:

Lecanora oreinoides on Stephen Sharnoff Photography

Lecanora oreinoides on Discover Life

Lecanora oreinoides at the Australian Government's Australian National Botanic Gardens

Lecanora oreinoides at the Consortium of North American Lichen Herbaria

References:

Brodo, Irwin M.; Sharnoff, Sylvia Duran; Sharnoff, Stephen, Lichens of North America, Yale University Press, 2001, p. 384

Lecanora oreinoides description by Thomas H. Kent, last updated 16 Aug 2013.

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Lecanora oreinoides (Sunken rim-lichen)

4/10/2010 · Tom & Susan’s, Pepperell, MA
≈ 3½ × 2½" (9.8 × 6.6 cm) ID is uncertain