Hispidopannaria Elvebakk, S.G. Hong & C.H. Park, gen. nov.

MycoBank number: MB 837372; Index Fungorum number: IF 837372; Facesoffungi number: FoF 13341

Generitype: Hispidopannaria hispidula (Nyl.) Elvebakk, S.G. Hong & C.H. Park.

Diagnosis: Differs from Pannaria by forming large, geo- tropically arranged, hispid squamules, by having asci with IKI + blue apical cap-like structures, and ascospores with perispores with irregularly positioned pulvinate verrucae and pulvinate to reniform apical extensions.

Etymology: From Latin “hispidus” (= covered by coarse, rigid hairs), in combination with its relationship to Pannaria.

Description: Thallus of chloromorph 5–30 cm diam., corticolous or saxicolous, large-squamulose. Squamules erect from a more or less distinct, blackish hypothallus, subdichothomously divided, forming a contiguous mat, 3– 7 mm tall. Lobes 0.3–0.5 mm wide, 150–400 μm thick. Upper surface grayish when fresh and dry, dark salad-green when fresh and moist, gradually turning chestnut brown in old herbarium specimens, matt, distinctly to occasionally hispid from hyaline erect hairs, 60–100 μm long, 5–10 μm thick, with indistinct septae. Major photobiont Trebouxia. Nostoc cells organized within conspicuous, foliose to fruticose and 1–5 mm large cephalodia, also hispid. Apothecia common, 1–3.5 mm, with crenate thalline excipuli, hymenium IKI+ blue, asci with cap-like, apical IKI+ blue structures. Proper spores ellipsoid, surrounded by smooth perispores, except for apical pulvinate to reniform extensions and scattered pulvinate verrucae. Pycnidia forming verrucae with small bacilliform spermatia.

Chemistry: pannarin or TLC-negative.