Taxonomic importance of spore morphology of selected taxa of Asplenium (Aspleniaceae) from Pakistan.

Abstract

Taxonomic importance of spore morphology of seven taxa of genus Asplenium (Aspleniaceae) from Pakistan is illustrated with SEM. Spore morphology of the taxa were monolete with bilateral symmetry, distal and proximal view were ellipsoidal, spheroidal, equatorial view were hemicircular; perispore surface were alate, costate, costate-alate, with reticulate and tuberculate ornamentation. Taxonomic importance of spore morphology of seven taxa of Asplenium (Aspleniaceae, polypodiales) from Pakistan. Basionym, Synonyms with updated nomenclature. Spores are monolete, distal and proximal view ellipsoidal, spheroidal, equatorial view hemicircular, perispore with alate, costate, reticulate, and tuberculate surface. Habitat ecology with specimens examined from different areas of Pakistan and their worldwide general distribution.