This section is from the book "Materia Medica And Therapeutics - Vegetable Kingdom", by Charles D. F. Phillips. Also available from Amazon: Materia Medica And Therapeutics: Vegetable Kingdom.
So far as studied, its effects are similar to those of ergot. It may be used in the same preparations and doses. It is readily obtained at the proper season, and good ustilago is better than bad ergot).