Prunus Virginia, Wild Cherry. This name is deceptive. The true Prunus virginiana is the choke cherry, whereas the bark used in medicine is from the Prunus serotina. The U. S. P. syrup of wild cherry while in no sense an active expectorant, yet has been proven by experience to be a very useful agent. Besides its soothing properties, it is tonic, agrees well with the stomach, seems to be especially adapted to subacute and chronic coughs, and is an admirable vehicle. Dose, I f3.