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Welcome alumni and friends!

Herbarium Director: Dr. Martha A. Case Associate Professor of Biology Herbarium Curator: Beth Chambers

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Welcome alumni and friends!

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  1. Herbarium Director: Dr. Martha A. Case Associate Professor of Biology Herbarium Curator: Beth Chambers Herbarium associates: Dr. Donna M. E. Ware, Director/Curator Emeritus Dr. Stewart Ware, Professor Emeritus Staff of the VA Natural Heritage Program (DCR) The Virginia Native Plant Society Over 20 collectors & contributors Major funding: The College of William & Mary The National Science Foundation Welcome alumni and friends! To the new William & Mary Herbarium

  2. This 5 minute slide show will introduce you to herbaria and their function…. Then exit left to see our facility and an exhibit featuring…..

  3. Clematis addisonii Amsonia tabernaemontana Asclepias tuberosa Virginia plants & student research

  4. Herbaria are repositories of dried and pressed plant specimens, archivally maintained in a “library of plants”

  5. There are 3,382 herbaria worldwide, representing over 300 million specimens contained in herbaria

  6. Herbarium specimens document where and when a plant grew

  7. For example, the counties in VA whereCampanulastrum americanum has been found This allows us to understand the ecology and geographic ranges of species

  8. External form and structure Herbarium specimens also provide biological material for scientists to study such as:

  9. Herbarium specimens also provide biological material for scientists to study such as: • Microscopic features like pollen

  10. Herbarium specimens also provide biological material for scientists to study such as: • Variation within a particular kind of plant

  11. Herbarium specimens also provide biological material for scientists to study such as: • Even DNA itself!

  12. Have populations of American ginseng declined in the last 150 years? Herbaria are a vital resource for many kinds of research questions

  13. Herbaria are a vital resource for many kinds of research questions • Are exotic and destructive species spreading?

  14. Herbaria are a vital resource for many kinds of research questions • What species are found in the College Woods or other areas?

  15. Herbaria are a vital resource for many kinds of research questions: • Are these three goldenrods distinct species?

  16. Herbaria are a vital resource for many kinds of research questions: • Yes! Solidago altissima Solidago canadensis Solidago juncea

  17. Herbaria are a vital resource for many kinds of research questions • How do you identify species? • Which one is poison ivy?

  18. Herbaria are a vital resource for many kinds of research questions • This one, because of its → alternate leaves and 3 leaflets box elder Virginia creeper

  19. Over a hundred research students and herbarium associates have contributed over 30,000 specimens to the herbarium Dr. Gretchen North “Flora of E. Middlesex Co.”1983 Dr. Amanda Ingram“Flora of Greensprings”1998 Christopher Johnstone“Flora of Totuskey Creek”2008 Dr. Doug Soltis “Flora of the Davis Pond”1974

  20. These specimens document species occurrences and provide material for other research projects Such as the Flora of Virginia Project “The Flora of Virginia, with publication targeted for 2012, will describe more than 3,500 plant species in 200 families and feature 1,400 captioned, scaled, and botanically accurate illustrations”

  21. Specimen collecting & processing Your visit to the herbarium will show you more about:

  22. Your visit to the herbarium will show you more about: • Student research projects Cypripedium kentuckiense

  23. Your visit to the herbarium will show you more about: • Plant identification

  24. Your visit to the herbarium will show you more about: • And plants that can be found in our College Woods!

  25. Funding Acknowledgements • The College of William & Mary • National Science Foundation • Virginia Native Plant Society • Anonymous donors • Image credits: • Botanical Society of America • Illinois Natural History Survey (ILLS) • Michael Clayton, Wisconsin State Herbarium (WIS) • Robert Bebb Herbarium (OKL) • University of Victoria herbarium (UVIC) • VA Department of Conservation & Recreation • Gary Flemming • Hal Horwitz • Keir Morse • Phillip Merritt • Troy Weldy Phlox nivalis

  26. Please exit left into the herbarium

  27. This five minute slide presentation will repeat in 1 minute.

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