Rinodina alpina sp. nov. (Ascomycota, Physciaceae): A New Corticolous Lichen From the Northwestern Himalaya, India

A new species Rinodina alpina Vish. Kum. & S.K. Uniyal is described from the alpine region of Kugti Wildlife Sanctuary, Himachal Pradesh, India. The new taxon is characterized by a thin, continuous to rimose‐areolate, greenish‐gray to gray thallus, without vegetative propagules, solitary to contiguous apothecia, brown to dark brown and epruinose, apothecial discs and small, ellipsoid, Dirinaria ‐type ascospores measuring 12.5–16.5 μm × 6.5–9.5 μm and the absence of secondary metabolites. A detailed description together with illustrations, habitat and ecology, and comparison with closely allied taxa are provided herein.