The book includes the studies on important herbal drugs. These drugs are utilized as a native medicine in different formulation or in organ form in different systems of medicine in India. It is used in different ailments. The present study highlights the morphology of selected plants, association of fungi with crude drugs under storage condition and effect of relative humidity on fungal growth. The medicinal properties of the herbal drugs depend upon their chemical constituents and these therapeutically active chemical constituents may substantially diminish their therapeutic...