Bull. Natl. Mus. Nat. Sci., Ser. B, 38(4), pp. 153–181, November 22, 2012 Rare and Threatened Pteridophytes of Asia 2. Endangered Species of India — the Higher IUCN Categories Christopher Roy Fraser-Jenkins Student Guest House, Thamel. P.O. Box no. 5555, Kathmandu, Nepal E-mail:
[email protected] (Received 19 July 2012; accepted 26 September 2012) Abstract A revised list of 337 pteridophytes from political India is presented according to the six higher IUCN categories, and following on from the wider list of Chandra et al. (2008). This is nearly one third of the total c. 1100 species of indigenous Pteridophytes present in India. Endemics in the list are noted and carefully revised distributions are given for each species along with their estimated IUCN category. A slightly modified update of the classification by Fraser-Jenkins (2010a) is used. Phanerophlebiopsis balansae (Christ) Fraser-Jenk. et Baishya and Azolla filiculoi- des Lam. subsp. cristata (Kaulf.) Fraser-Jenk., are new combinations. Key words : endangered, India, IUCN categories, pteridophytes. The total number of pteridophyte species pres- gered), VU (Vulnerable) and NT (Near threat- ent in India is c. 1100 and of these 337 taxa are ened), whereas Chandra et al.’s list was a more considered to be threatened or endangered preliminary one which did not set out to follow (nearly one third of the total). It should be the IUCN categories until more information realised that IUCN listing (IUCN, 2010) is became available. The IUCN categories given organised by countries and the global rarity and here apply to political India only.