Notes on Corticolous and Saxicolous Species of Porina from India, with Porina subhibernica sp. nov.

Eight corticolous and one saxicolous species ofPorinafrom India are discussed. Porina chlorotica var. carpinea (Pers.) Keissler is a new record for India and P. subhibernica Upreti is described as a new species. The lichen genus Porina Miill. Arg. is character- ized by crustose, ecorticate, foliicolous, epi- or en- dophloeodal, rarely saxicolous thalli, single, dis- persed, colorless or dark subglobose, to globular perithecia, with outer wall (involucrellum) black, brown or reddish brown and inner wall colorless or

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