Study on composition of two polysaccharides Gbp and Gcp from root of Gerbera piloselloides Studies on chemical constituents from Gerbera piloselloides The Antitussive and De-sputum Essential Substance from the Root of Gerbera piloselloides and Its Analytical Compositions Studies on the Chemical Constituents from the Roots and Rhizomes of Gerbera piloselloides