This section is from the book "A Manual of Materia Medica and Pharmacology", by David M. R. Culbreth. Also available from Amazon: Manual of Materia Medica and Pharmacology.
Co'La Acumina'Ta, Cola Nut. Sterculiaceae. W. Africa (see page 100); seeds contain caffeine 2 p. c, theobromine, tannin, volatile oil, etc.
Paullin'Ia Cupa'Na, Guarana. Sapindaceae. Brazil (see page 382); seeds contain caffeine (guaranine) 4-5 p. c, tannin 2.0 p. c, starch, mucilage, fat, saponin, resin, volatile oil.
 
Continue to: