Note 6 — AUTHOR'S PREFACE

Christian Gottfried Nees von Esenbeck (1776-1858), a famous botanist and physician. He first engaged in the practice of medicine, but in 1818 went to Erlangen as professor of botany, the next year being called to Bonn, then being professor at Breslau (1831-52). The number of his published works is considerable.—Ed.