Cover

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Contents

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p. ix

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Preface to the Fourth Edition

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pp. xi-xii

The field guides of the Colorado Flora began in 1949 and continue to be works in progress. We learn more and more every season and I, myself, feel very lucky to have lived long enough to have made a good start. Ours is a most interesting flora, unique in its remarkable altitudinal range, special climatic events, and numerous microhabitats...

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Acknowledgments

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p. xiii

Our exploration of the Colorado flora has been a cooperative enterprise, involving both field and herbarium work and spanning more than half a century. So many of our students, foreign visitors, and specialists have given invaluable aid that it is impossible to name them all. We have learned from each other, and it is difficult to sort out the mentors...

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Background of Floristic Work in Colorado

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pp. xv-xxvi

Our knowledge of floras have their beginnings with the collecting of botanical specimens. Fortunately the habit of establishing herbaria, collections of dried plants, began long ago, perhaps in Italy. Reports not backed up by specimens in an herbarium are useless hearsay. These collections must be guarded from abuse, carelessness, and destruction...

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Books to Inspire

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p. xxvii

In this book I also try to lure devotees into reading some of the great books of botanical history and adventure. The historical period is being brought to life. Now you can read the journals dealing with the collecting trips of Linnaeus’ students, the struggle in England to move from the Linnean system of classification to a natural...

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A Vade Mecum of the Field Botanist

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pp. xxix-li

Colorado Flora: Eastern Slope has as its subject the vascular plants—ferns, gymnosperms, and flowering plants—native and naturalized on the entire hydrologic Eastern Slope of Colorado from the Continental Divide to the Wyoming, Nebraska, Oklahoma, and New Mexico borders. It is a rich and varied territory, comprising a large segment...

Key to the Families

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pp. 1-16

Ferns and Fern Allies

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pp. 17-37

Gymnosperms

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pp. 38-41

Angiosperms

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pp. 42-384

Figures

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pp. 385-490

References

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pp. 491-496

Index / Glossary

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pp. 497-549

Illustrated Plant Structures

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pp. 550-555