Aquatic Plants Fo the Pacific Northwest with Vegetative Keys
OREGON STATE MONOGRAPHS Studies in Botany FRANK H. SMITII, Ph.D., Consulting Editor Aquatic Plants of the Pacific Northwest With Vegetative Keys STUDIES IN BOTANY Number 11 i Studies in Botany 1.Tuberales of North America, by Helen M. Gilkey 2.Developmental Morphology of Alpova, by S. M. Zeller 3.Paleoecology of Two Peat Deposits on the Oregon Coast, by Henry P. Hansen 4. Moss Flora of the Willamette Valley, Oregon, by Clara J. Chapman and Ethel I. Sanborn 5.Floral Anatomy of the Santalaceae and Some Related Forms, by Frank H. Smith and Elizabeth C. Smith 6.Septoria Disease of Gramineae in Western United States, by Roderick Sprague, Ph.D., Pathologist 7.Clavaria, the Species from Oregon and the Pacific Northwest, by Maxwell S. Doty 8. The Marine Algae of the Coos Bay-Cape Arago Region of Oregon, by Ethel I. Sanborn, and Maxwell S. Doty 9. Northwestern American Plants, by Helen M. Gilkey 10.Species of Selenophoma on North American Grasses, by Roderick Sprague, and A. G. Johnson 11. Aquatic Plants of the Pacific Northwest with Vegetative Keys, by A. N. Steward, La Rea Dennis, and Helen M. Gilkey ii Aquatic Plants of the Pacific Northwest With Vegetative Keys By ALBERT N. STEWARD Formerly Associate Professor of Botany Associate Botanist, Agricultural Experiment Station, Oregon State College LA REA J. DENNIS Instructor in Botany, Curator of Herbarium, Oregon State College HELEN M. GILKEY Professor Emeritus of Botany, Oregon State College STUDIES IN BOTANY NUMBER 11 OREGON STATE COLLEGE CORVALLIS, OREGON 1960 iii TABLE OF CONTENTS Page Key to Families 3 Descriptive Flora 19 Glossary 165 Bibliography 171 Index 173 PLATES Page Plate I 26 Plate II 37 Plate III 48 Plate IV 56 Plate V 73 Plate VI 83 Plate VII 93 PlateVIII 96 Plate IX 104 Plate X 110 Plate XI 116 Plate XII 120 PlateXIII 125 Plate XIV 134 Plate XV 138 Plate XVI 143 PlateXVII 147 Plate XVIII 152 Plate XIX 158 Plate XX 164 Printed at the College Press Oregon State College iv PREFACE With the support of the National Science Foundation, the late Dr.
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