Excerpt: Many entomologists are faced with the problem of identifying a plant that an insect has been gathering nectar from, feeding on, or pollinating. Unless he is armed with a working knowledge of botany, and can handle the cumbersome keys in our modern floras, h e must resort to a specialist or a picture book.
Donahue, Julian P.
"Wild Flowers of the United States: Volume 1, The North-Eastern States (in two parts). Harold William Rickett. New York: McGraw-Hill Book Company, 1966. x, 559 pp. $39.50.,"
The Great Lakes Entomologist, vol 1
Available at: https://scholar.valpo.edu/tgle/vol1/iss7/6