Xanthoria tenuiloba, a new lichen species from Baja California, Mexico

摘要

The new species Xanthoria tenuiloba (Teloschistaceae, lichenized Ascomycotina) is described from Baja California, Mexico. It is characterized by a mostly greyish, subfruticose-fruticose thallus with very narrow and slender, nodulose lobes, and abundant blastidia. Apothecia and pycnidia are always orange pigmented, and conidia are ellipsoid. It grows on dry twigs and occasionally on rock in near-coastal scrub vegetation.