What did Nageli discover?
In 1844 he discovered the antheridia (reproductive structures in which male sex cells develop) and the spermatozoids of the fern. Nägeli introduced into botany the concept of meristem, by which he meant a group of plant cells always capable of division. Who is Nageli and Cramer? Carl Eduard Cramer (4 March 1831 in Zürich –…