Updated checklist of lichen biota of Meghalaya, India with 93 new distributional records for the state

The paper reports the occurrence of 337 species of lichens from Meghalaya in North-East India. The study includes compilation of previous reports and recent collections from the state. The 337 species are distributed under 40 families and 102 genera, out of which 93 species are reported for the first time from the state Meghalaya. The lichen biota is dominated by crustose lichens (226 spp.) with maximum representation of graphidaceous (66 spp.) forms. Frequent encountering of previously unrecorded species from Meghalaya indicates the lichen richness and insufficient exploration in the state.