Meaning of pereira bark

pe•rei'ra bark"

Pronunciation: (pu-râr'u), [key]
  1. the bark of any of several South American trees belonging to the genus Geissospermum, of the dogbane family, esp. that of G. vellosii, used in Brazil to allay fever.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.