United States, North Carolina, Yancey, Black Mts, along (Balsam Cone) Mitchell State Park boundary.
1
Confusingly annotated by Lendemer & Allen (2016), "NOT TYPE / type is Dey 1509". Protologue clearly cites [Dey] 1236 as type collection, with holotype deposited at DUKE (latter confirmed via JSTOR, 10/2017). Dey 1509 is type collection of Parmelia monticola, described on same page.