Botanic aspects of pollinosis in the area of San Antonio, Texas

The contents of this paper are divided into three interrelated parts.

Part 1 takes up some of the features of pollen idiotoxic specificity and attempts to rationalize these in the light of certain fundamentals of plant evolution.

Part 2 is an accounting of what may be termed the hay fever flora of the San Antonio, Texas, area.

Part 3 presents the data of an air-borne pollen survey which was conducted at Randolph Air Force Base.