Knowra Wilhelm Hofmeister Wilhelm Hofmeister Wilhelm Hofmeister (1824–1877) was a German botanist whose studies of plant reproduction and alternation of generations helped establish modern plant morphology.
Alternation of generations : A life cycle that alternates between multicellular haploid and diploid stages. Hofmeister showed that these stages form a shared pattern across mosses, ferns, and seed plants.
Fertilization in plants : The fusion of plant gametes that produces a zygote and begins a new diploid generation. Hofmeister documented how fertilization fits into the recurring plant life cycle.
Leipzig : A city in eastern Germany and a historic center of commerce, publishing, and higher education. Hofmeister was born and spent much of his life in Leipzig, where he pursued botanical work.
Moss : A small nonvascular plant whose life cycle features a prominent gametophyte and dependent sporophyte. Mosses offered Hofmeister a clear case of two generations joined through development.
Plant morphology : The study of plant form, structure, and the development of organs. His comparative work helped make plant life cycles central to morphological classification.
Sporophyte : The diploid, spore-producing stage in a plant life cycle with alternation of generations. He identified the sporophyte as a distinct generation, not merely a reproductive structure.
University of Heidelberg : A public research university founded in 1386 in Heidelberg, Germany. Hofmeister later held a professorship in botany there.
Fern : A vascular plant that reproduces by spores and has a free-living gametophyte. Fern development helped him trace the transition between gametophyte and sporophyte.
Plant embryology : The study of embryo formation and development in plants. His observations connected fertilization and embryo development across groups of plants.
Gametophyte : The haploid, gamete-producing stage in a plant life cycle with alternation of generations. His comparisons revealed how the gametophyte relates to the sporophyte in different plant groups.
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