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The Case of the Seedy Blanket

The Case of the Seedy Blanket.

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The Case of the Seedy Blanket

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  1. The Case of the Seedy Blanket There was no witness to the crime, except for the blue plaid blanket fibers found recovered on the ceremonial figure. It had been dragged into the marshy area behind the museum.After four days, police finally identified a likely suspect. In the trunk of her car was a blue plaid blanket---damp and covered in crushed leaves and other plant material. Detective Wright arrested the suspect and immediately called a forensic botanist to examine the evidence.

  2. “Interesting,” said Dr. Green, “it is unusual to see beard grass, dog fennel, and beak rush growing together.” Pointing to the leaves and seeds embedded in the blanket, he continued, “Look, a few seeds are starting to germinate.” He took the blanket to the lab for further investigation and collected plant samples from the crime scene and around town.

  3. At the trial, the suspect claimed that although she visited the museum, she had never been outside except in the museum’s parking lot. She had used the blanket during a picnic at the city park on the day before her arrest. Called to the witness stand to provide expert testimony, Dr. Green cleared his throat and immediately began confidently outlining evidence that countered the suspect’s claim.

  4. What do you think this case is about? What do you already know that relates to this case? What do you need to know to understand the case? How might this case be used to teach?

  5. What sorts of plant information do you think Dr. Green presented to the jurors that indicated: • Where the suspect had been? • When?

  6. Table of Potential Evidence

  7. References for The Case of the Seedy Blanketand Botanical Forensics NATIONAL WILDLIFE MAGAZINEFeb/March 1992, vol. 30 no. 2 When ScientistsBecome Sleuthsby Richard and Joyce Wolkomi http://www.nwf.org/nationalwildlife/index.cfm?issueID=87 Graham, S. 2006. Crime-solving plants. Plant Science Bulletin 52(3).http://www.botany.org/plantsciencebulletin/PSB52-3.pdf

  8. Incorporating Online Resources:Digital Image Collections, Distribution Maps University of Florida Herbarium, Digital Imaging http://www.flmnh.ufl.edu/herbarium/cat/digitalimagingprojects.htm Florida Flora Picture Gallery, Bushy Beardgrass habitat http://www.virtualherbarium.org/lf/glomer.jpg USDA Plants Database records on Dog Fennel, Bushy Beardgrass, and Beak Rush http://plants.usda.gov/java/profile?symbol=EUCA5 http://plants.usda.gov/java/profile?symbol=ANGL2 http://plants.usda.gov/java/profile?symbol=RHME3

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