抄録
The databases of chromosome number play significant role in research as they are useful for different areas, such as genetics, plant breeding, phytogeography, documenting intraspecific variation, endemism, plant systematics, origin of flora biodiversity and taxonomic relationship studies in diverse group of plants. The present database includes 702 unpublished and published records of the plants collected from 14 states of the India, which are preserved in our herbarium. These 702 records are distributued over 390 species, 272 genera and 71 famalies. The most explored family was Asteraceae (46 genus and 60 species) followed by Solanaceae (27 genera and 42 species). Intraspecific variations in chromosome number of 37 species has been recorded. In the database, chromosome count of seven species are reported first time in the science: Chassalia staintonii (H. Hara) Deb. et Mondal (n=11), Hygrophila erecta (Burm. f.) Hochr. (2n=29), Polygonum assamicum Meisn. (n=11), Salacca wallichiana Mart. (n=22), Salacca zalacca (Gaertn.) Voss (n=14), Sigesbeckia orientalis L. (n=12) and Stephania elegans Hook. f. et Thomson (n=18). In addition, new chromosome number in 60 species are also documented.
