Taxonomic Observations on the Genus Pyrrosia Mirbel from District Chamoli of Uttarakhand State (India)

The present article deals with detailed taxonomic studies with microphotographs on 4 species of the polypodiaceous genus Pyrrosia from the district of Chamoli in Uttarakhand State of India. Critical notes (where ever essential), ecological habitat, distributions, specimens examined alongwith microphotographs are provided.