Per Axel Rydberg: A Biography, Bibliography and List of His Taxa. Mem (58) NYBG BRAND An introductory section discusses floral

An introductory section discusses floral biology

as here interpreted

the subject of which is species-by-species records from pollination to fruit ripening

This treatment includes keys

5" x 11" paper size

Per Axel Rydberg: A Biography, Bibliography and List of His Taxa. Mem (58) NYBG BRAND An introductory section discusses floralSwedish American botanist Per Axel Rydberg (1860 1931) served as a field agent for the U. S. Department of Agriculture and a field agent and curator at The New York Botanical Garden. In a lifetime of collection and research, Rydberg became perhaps the foremost authority in the United States on the flora of the Middle West and Rocky Mountain regions. In his later years, he even began preparing his own illustrations of plants. This volume includes