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Per Axel Rydberg

Swedish-born U.S. botanist (1860-1931) · Sweden · On the map · Scientists · Died at 71

Per Axel Rydberg was a Swedish-born, American botanist who was the first curator of the New York Botanical Garden Herbarium.

Per Axel Rydberg is read about 6 times a day, in 13 languages.

A typical day, 30 days to 21 September 2026

The middle day of the days counted, so one week of news cannot move it. The line under it is the last 60 days, one point a day.

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Sweden