Aspidospermum quebracho. Sp. Quebracho blanco. Brazil. Bark contains aspidospermin, an alkaloid used in medicine, but both bark and wood are poor in tannin.
Quebracho colorado, see [Anacardiaceæ], [p. 269].
ERICACEÆ, Heath Family.
Arctostaphylos (or Arbutus) uva-ursi, Bearberry. Used in Russia, Finland; twigs and leaves said to contain 14 per cent. tannin. Often adulterated with leaves of Vaccinium vitis-idæ or Cowberry.
Arbutus unedo, Common Arbutus. Leaves, fruit and bark used on Mediterranean coasts.
VACCINIÆ.
Vaccinium Myrtillus, Bilberry. Used in Piedmont.
SAXIFRAGEÆ.
Weimannia glabra L., “Curtidor” bark. Venezuela.
Weimannia macrostachys D.C. Reunion.