Five New Allographa Lichen Species Discovered in Western Ghats – Implications for Forest Health and Conservation

The Allographa genus has added five new species from the Western Ghats . The discovery was made by a team from the MACS Agharkar Research Institute , funded by the DST . By combining classical taxonomy with molecular phylogenetics , the researchers clarified species boundaries and evolutionary links within the family Graphidaceae . Key Developments Five new species – Allographa keralensis , A. nayakae , A. paraconsanguinea , A. persistinspersa and A. semicarbonisata – were formally described. Researchers used three DNA markers – mtSSU , nrLSU and RPB2 – to build a robust phylogenetic tree. New molecular data were also generated for known species such as A. calcea , A. macella , A. aquilonia , A. rimulosa and A. effusosoredica . The study showed that morphologically similar lichens may be genetically distant, highlighting limits of visual identification alone. Important Facts Allographa now has over 200 described species worldwide; the Indian count rises with these five additions. The research is the first comprehensive molecular phylogenetic investigation of Allographa from the Western Ghats. An updated checklist of Allographa species in the region, with sequence data availability, has been published. Findings are published in Mycological Progress (2026) and are accessible via Springer. UPSC Relevance Understanding lichen diversity aids in assessing bio‑indicator health of forests, a key topic in GS‑3 (Environment and Ecology). The integration of molecular tools with traditional taxonomy illustrates the modern approach to biodiversity research, relevant for questions on scientific methods and policy implementation under GS‑3. Moreover, the role of the DST and autonomous institutes showcases the governance framework for scientific research, a frequent UPSC theme. Way Forward Future work should expand sampling across the Western Ghats and generate more molecular data to resolve remaining taxonomic ambiguities. Policymakers can use the updated checklist to prioritize conservation zones, especially where newly discovered lichens indicate high ecological sensitivity. Strengthening collaborations between taxonomists, molecular biologists and forest managers will improve long‑term monitoring and support evidence‑based conservation strategies.