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"[Plin. Nat. 27.99.] - THE PHYTEUMA: ONE PROPERTY.
As for the phyteuma, I think it a mere loss of time to describe it, it being only used as an ingredient in philtres."
(The Natural History. Pliny the Elder. John Bostock, M.D., F.R.S. H.T. Riley, Esq., B.A. London. Taylor and Francis, Red Lion Court, Fleet Street. 1855.)