It has been our aim to study the flora of this district—Kansas City, Mo., and the surrounding territory—to find out, if possible, which plants play the more important rôles in the causation of hay-fever, asthma and the dermatoses attributable to contact allergy. The botanic observations were made by one of us (O. C. D.) during a period of about eight years while collecting pollen. Notes were made each year relative to the abundance in growth of the different plants, the relative quantity of pollen produced by each, the nature of the pollen produced (whether light or heavy, dry, moist or oily), the dates of commencement and duration of the pollen season for each, and the dates during which pollen was produced in greatest quantity. In the clinical studies made by one of us (W. W. D.) during the same period, an effort was made by means of history, together with
DUKE WW, DURHAM OC. A BOTANIC SURVEY OF KANSAS CITY, MO., AND NEIGHBORING RURAL DISTRICTS: WITH REFERENCE TO THE FLORA RESPONSIBLE FOR HAY-FEVER, ASTHMA AND DERMATOSES. JAMA. 1924;82(12):939–944. doi:10.1001/jama.1924.02650380007002
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