V. canadensis V. juniperinus V. pinastri V. viridis Vulpicida is a genus of lichenized fungi in the family Parmeliaceae.
The genus was circumscribed by Jan-Eric Mattson and Ming-Jou Lai in a 1993 Mycotaxon publication, to contain yellow species containing vulpinic and pinastric acids and a broadly club-shaped ascus.
The upper thallus surface is bright to dark yellow (resulting from usnic acid), sometimes greenish, often wrinkled or somewhat folded.
The rhizinae (black hair-like strands that attach the lichen to their substrate) are laminal (originating from all across the thallus surface), almost never close to the margin and rather sparse, and either simple or irregularly branched.
These compounds, combined with usnic acid, give the species their characteristic yellow and green colors.