(Common Dogwood.)
_Cortex._
[The dogwood is a common forest tree, abundant in almost every part of
the United States. It flowers in the months of May and June. The bark,
which is the part used in medicine, yields by analysis tannin, gallic
acid, resin, gum resin, bitter extractive, and mucilage. The dogwood is
a powerful tonic, and by many practitioners has been used as a
substitute for the Peruvian bark. The diseases in which it has been
found serviceable are intermitting and remitting fevers, dyspepsia,
general debility, &c. It may be given in substance, in doses of ʒj to
ʒij—in extract, from 5 to 15 grs. or in infusion or decoction.]