William Wirt Calkins (1842 - 1914) (Calk.)
U.S.A. Mycologist & Lichenologist
External links
- Fink, B. 1915. William Wirt Calkins, Amateur Mycologist. Mycologia 7(2): 57–60
- Wirt, W.W. 1896. The lichen flora of Chicago and vicinity.
- William Wirt Calkins - Illinois Natural History Survey
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