Karyomorphological Analysis of Pterospermum reticulatum Wight and Arn. from Western Ghats of India

Abstract

The genus Pterospermum Schreb. (Malvaceae) with 54 species worldwide and it is represented by 11 taxa in India. Pterospermum reticulatum Wight and Arn. is listed as vulnerable B1+2c species by IUCN. The mitotic chromosome number 2n=38 and karyomorphology of P. reticulatum are reported for the first time. The karyotype formula is 18 m+1sm and belongs to 2B karyotype of the Stebbins category.