Browsing by Author "Pushpakumara, P.K.N.G."
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Item Variation of Pyrrosia heterophylla (L) price and evidence for occurrence fo two other pyrrosia species in Sri Lanka(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2006) Ranil, R.H.G.; Pushpakumara, P.K.N.G.; Sivananthawerl, T.