Nägeli, Karl Wilhelm von
Karl Wilhelm von Nägeli (both: kärl vĬl´hĕlm fən nā´gəlē), 1817–91, Swiss botanist. He was professor at the Univ. of Munich from 1858 and was noted especially for his work on plant cytology and development. He made studies of the process of division in pollen grains and in unicellular algae, and he determined the function of many plant parts, such as the antheridia and spermatozoids of ferns. In his studies of cells he made a distinction between the nuclear material and a mucous layer of living matter (protoplasm).
"Nägeli, Karl Wilhelm von." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (September 25, 2018). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/nageli-karl-wilhelm-von
"Nägeli, Karl Wilhelm von." The Columbia Encyclopedia, 6th ed.. . Retrieved September 25, 2018 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/nageli-karl-wilhelm-von