Additions to the Lichen Biota of undivided Nagaon District with special reference to Tylophoron protrudens Nyl., a new record to Assam State of India

Abstract

An enumerative account of 31 lichen species new to undivided Nagaon district of Assam, species
under 21 genera and 14 families is provided. Among the 31 species 27 are crustose, two are
leprose and species each of, foliose and squamulose. Tylophoron protrudens Nyl. is recorded
for the first time to the lichen flora of Assam and its brief description is provided. The species
were collected from seven localities and maximum number of lichen species has been recorded
from Suang Forest area. A detailed exploratory work on lichens will definitely contribute to the
lichen biota of India as well as Assam as most of the forests of erstwhile Nagaon district has
not been explored yet.