Excerpt from Manual of the Flowering Plants of Iowa: A Thesis This volume is the result of continued study of the flowering plants of Iowa during a period of seven years. The author has collected In more than thirty counties and in most portions of the stale. To the collections thus obtained the author's many friends have made generous additions either by donation or by exchange. So far as possible all the literature relating to Iowa botany has been canvassed and the collections In the State University have been examined. All previous treatises have been in the nature of lists: many annotated, some not; and were mostly confined to the flora of restricted localities. In this volume all the scattered information is gathered and the author endeavors to correct previous errors, to cod firm the observations already made, and to add new Information obtained by personal effort. This work Is founded primarily upon the private herbarium of T. J.
and M. F. L. Fitzpatrick and in this connection the author wishes to state that he is under obligations to the following parties who have sent many rare or Infrequent and interesting specimens: Fred Reppert of Muscatine county. Prof. B. Fink of Fayette county. E.
W. D. Holway and Herbert Goddard of Winneshiek county. R. I. Cratty of Emmet county. Prof. Pammel.
C. R. Ball and Wilmon Newell of Iowa State College. J. P. Anderson of Decatur county. J. H.
Mills of Henry county, and Profs. T. H. Macbride and B. Shiraek of the State University, and to many others who have lent aid In a limited amount. In the determination of difficult material the author has received aid from Prof. Wm. Trelease.
and Prof. J. It. S. Norton of the Missouri Botanical Garden. F. Lamson-Scribner of the U. S.
Department of Agriculture, and R. I. Cratty. The question of nomenclature is ss yet unsettled. For some reason the new nomenclature has not been received with much favor by Iowa botanists. Because of this the author has thought it best to pursue a conservative course. All needful changes have been adopted and by the use of synonyms both the old and new systems are presented. The author shall be pleased at all times to receive information and material so that he may be able to extend his knowledge of a subject the pursuit of which has been a source of much pleasure.
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