Vermilacinia cedrosensis is a pale fruticose lichen endemic to Baja California, Mexico, occurring on Cedros Island, the Vizcaíno Peninsula, and north along the main peninsula of the northern Baja California coast mountains to near Punta San Carlos. The species is usually found inland from the immediate coastal environment in wind-sheltered microenvironments, which may be leeward sides of small stones or rock ledges on vertical rock walls in narrow arroyos