A new species of the genus Bacidina (Ramalinaceae, Ascomycota) from Pakistan

Bacidina pakistanica from the Himalayan moist temperate forest in Pakistan is described as new to science. nrITS sequences confirm its position within the genus Bacidina and together with its morphology suggest that it is distinct from other species of this genus. The taxon is characterized by olive green to pale green thallus, purplish black to almost black apothecia, 0.7- 0.9 -1.3 -1.75 mm wide, a hymenium 65 - 80 mu m high, 3 - 4 septate and large ascospores 28 -55 x 1.9 -3 mu m. Also an updated key to Bacidina in Pakistan is provided.