Dr. Irwin Brodo, a research scientist with the Canadian Museum of Nature studies the taxonomy of all kinds of lichens, but especially the smaller ones. He is also interested in the lichens of British Columbia and Ontario. Mr. Pak Yau Wong, an expert on the lichens of Southern Ontario, manages Nature's collection of over 110,000 specimens of lichens. The size of this collection has increased from 18,000 specimens in 1965, largely due to the efforts of Dr. Brodo.

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