Palynological studies of nepalese fern-Family adiantaceae

Palynology of two pteridophytic species belonging to the family Adiantaceae from Nepal are investigated by light microscope (LM). These are: Adiantum caudatum L. and Adiantum philippens L.. Sori close to the margin, born on orbiscular to very long, strongly recurverd modified margin lobes, the sporangia confined to the veins or sometimes also on the tissue, indusium false, spores with tetrahedral trilete, light brown to dark brown, exine withscrabrate smooth granulate or reticulate, size quite variable. All studied spores are more or less triangular in shape. General characteristics like spore type, ornamentation could be useful for taxonomy of Adiantum.