Fern and their allies were collected from different areas of Udhagamandalam and Coonoor, Tamilnadu, India. The area is surrounded by the lofty and great mountains of Nilgiris hills. Great altitudinal variation, high forest cover, adequate rainfall and topographic variations render the district worthy for supporting rich fern flora. Hence, the present study was aimed to undertake in-depth systematic survey of the area for the collection of diversity of pteridophytes. Specimens were collected during March-October 2020-21 at an altitude of 2700m. A total of 20 species of ferns and their allies were collected belonging to different families. A list of the species along with their nomenclature, synonyms, ecological and distributional notes have been provided so that it will be easy for their identification to the younger generation.
Shah et al. (Mon,) studied this question.