Excerpt from A Monograph, North American Potentilleae I hereby extend my thanks to the directors and curators of these institutions, as well as to the following persons who have kindly loaned me their private collections or sent specimens: S. B. Parish, San Bernardino, Cal. Thomas Howell, Clackamas, Ore. C. F. Baker, Auburn, Ala.; Professor Aven Nelson, University of Wyoming; Geo. E. Osterhout, New Windsor, Colo. O. A. Farwell, Detroit, Mich, and others. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.