The lichen genus Dibaeis is currently represented in India by two species, viz., Dibaeis baeomyces and Dibaeis pulogensis reported from the states of Meghalaya, Sikkim and Western Bengal. The present study describes the occurrence of a new record Dibaeis absoluta from the Eastern Himalayan hill tracts of Mizoram, North-East India which is situated in the Indo-Burma biodiversity hotspot. The addition of present new record of Dibaeis species further increased the number to three in India. A revised key is also provided.
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