chapter  12
Ethnopharmacology of Anthelmintic Ferns
Pages 6

Pteridophytes constitute the primitive vascular plant groups which are found scattered all over the world. While not much consideration has been given towards the utility of pteridophytes; though they possess equal economic and medicinal importance . Ferns are represented by about 305 genera, comprising more than 10,000 species all over the world. The medicinal value of pteridophytes is known to man for more than 2000 years.