Chromosome Atlas of the Indian Pteridophytes (1951-2009 : An Index to chromosome numbers of ferns and fern-allies of the present-day political India (with information about the related taxa from adjacent regions of Pakistan, Nepal, and Bhutan)
S.S. Bir and S.C. Verma
- Dehra Dun Bishen Singh Mahendra Pal Singh 2010
- xx, 346 p. 29 cm