1. Dhir, K.K. and Rani, K. (1978). The genus Athyrium Roth in Naini Tal hills. J. Bombay. nat. Hist. Soc., 76: 49-58.

Google Scholar

2. Dhir, K.K. (1980). Ferns of the North-western Himalaya. Biblotheca Pteridologia., 1 : 1-158.

3. Duthie, J.F. (1906). Catalogue of plants of Kumaun and of the adjacent of Garhwal and Tibet based on the collection made by Strachey and Winterbottom during the year 1846-1849. London.

Google Scholar

4. Khullar, S.P., Pangtey, Y.P.S., Samant, S.S., Rawal, R.S. and Singh, P. (1991). Ferns of Naini Tal. Dehra Dun.

5. Loyal, D.S. and Verma, S.C. (1980). Ferns of Naini Tal. J. Bombay nat. Hist Soc., 57: 479-490.

6. Pande, P.C. (1990). A census of Kumaun ferns (north- western Himalaya). Indian Fern J., 7 : 140-195.

Google Scholar

7. Pangtey, Y.P.S. and Punetha, N. (1987). Pteridophytic flora of Kumaun Himalaya : An updated list. In: Western Himalaya : Environment, Problems & Development, (ed. Y.P.S. Pangtey & S.C. Joshi). Naini Tal. 1 : 389-412.

Google Scholar

8. Verma, S.C. and Khullar, S.P. (1980). Ferns of Naini Tal (Western Himalaya) : An updated list. Fern Gaz., 12 : 83-92.

Google Scholar