March 28, 2011
Overlap between UM and UMBS Herbariums
I am in the process of exploring a Biological Research Collections (NSF) grant that would see us partnering with the UM Herbarium to digitize portions of our herbarium collection. For now, we have focused in on Howard Crum's collection (Bryophytes) as a potential starting point due to historical importance and a belief that the UM Herbarium does not have these items in its collection.
To test this latter assumption, I sampled 50 records from our Bryophyte collection and searched the UM Herbarium's collection of Bryophytes that were collected by Howard Crum to see how many matches we had. A large number of matches would indicate high overlap and decrease the uniqueness of our collection. I hope those unedited explanations make sense.
Here are the numbers:
2% - percent of matching records (i.e., one) that I found.
44% - percent of UMBS records I encountered that were not collected by H. Crum (22/50)
5 - Number of times the UM Herbarium had items from the same date and location as a UMBS record but did not have the same specimen
Conclusion, a quick glance indicates the UMBS Bryophyte collection is not represented within the UM Herbarium.
Posted by kkwaiser at March 28, 2011 04:35 PM
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