File:Interstate medical journal (1919) (14577480908).jpg

Identifier: interstatemedica2619unse (find matches)
Title: Interstate medical journal
Year: 1919 (1910s)
Authors:
Subjects: Medicine
Publisher: St. Louis, : Interstate Medical Journal
Contributing Library: The College of Physicians of Philadelphia Historical Medical Library
Digitizing Sponsor: The College of Physicians of Philadelphia and the National Endowment for the Humanities

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rtilized by butterflies and bees, and are typicalinsect-pollinated plants. As the pollen is not found in the air, theydo not cause hayfever, except by direct application to the nostrils. Rose (Rosa, Fig. 2). In addition to the numerous cultivatedvarieties, there are many wild species which are natives of North 5The Treatment of Hayfever by Pollen Extracts and Bacterial Vaccines (NewYork Med. Record, June 1, 1918). eHayfever and Its Relation to 100 of the Most Common Plants, Trees, andGrasses. Wm. Scheppegrell (Med. Record, Aug. 11, 1917). 134 INTERSTATE MEDICAL JOURNAL America. These are among the most beautiful of our flowers, andmany are highly fragrant. In spite of the summer form of hayfeverbeing called rose cold, the pollens of the roses are never foundin the air, and therefore do not cause hayfever. Evening Primrose (Oenothera, Fig. 3). These are among ourmost interesting wild flowers. The large yellow lemon-scentedflowers open just before sundown and fade in the sunlight of the
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Fig. 6.—Resinweed. Blamed in Wyoming and the adjoining states for theprevalence of hayfever, but its sticky pollen cannot rise in the air. following day. They are fertilized by the honey bee, bumble bee,and nocturnal moths. They are listed as hayfever plants in someof the older text-books, but are harmless. There are about 15varieties in the United States and all are typical insect-pollinatedflowers. Field Daisy (Chrysanthemum, Fig. 4). The botanical name of Scheppegrell: Harmless Floivers and Hayfever Weeds 135 the field daisy is chrysanthemum, which is Greek of goldenflower. They are the most common flower of the field and road-side, and are universal favorites for their simplicity and decorativebeauty. There are about 100 varieties of wide geographical distribution.All are fertilized by bees and Butterflies. Their pollen is neverfound in the air, so that they do not cause hayfever, although irrita-tion may result in sensitive nostrils by direct contact with theflowers.

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