CRI is a 501c3 Non-Profit Organization

Link to Recent WBEZ Chicago Radio Interview:


Dr. Gerould Wilhelm and Mike MacDonald talk about the new book Flora of the Chicago Region: A Floristic and Ecological Synthesis. The interview aired January 23, 2018

Dr. Wilhelm’s Field Notes

Watch this page for information about Dr. Gerould Wilhelm's latest projects and research, plus upcoming and recent appearances.

Link to The Harbinger, Newsletter of the Illinois Native Plant Society

(see page 3) Dr. Wilhelm will be the featured keynote speaker at the Indigenous Plants Symposium April 13-15, 2018 – (note new dates from last newsletter) hosted by the Southern Chapter. Events will be held at John A. Logan College in Carterville, IL and will include a native plant sale with Green Earth.

Dr. Wilhelm's study of lichens has been a life-long passion. Currently he is working on a new book, Lichens of the Chicago Region

Preview of Dr. Wilhelm's work on a new bookLichens of the Chicago Region. Shown here is page 1 of his current draft. To see much more, link to the pdf:

To read much more of this draft, link to the pdf above this excerpt: