| Date | Text | |
|---|---|---|
10 May 1805
Alexander Carl Heinrich Braun |
birth Alexander Carl Heinrich Braun Born 10 May 1805; died 29 Mar 1877 at age 71. German botanist who was the most highly regarded botanist of the “nature philosophy” school, a doctrine which attempted to explain natural phenomena in terms of the speculative theories that dominated early 19th-century German science. Several species of cryptogams he discovered bear his name, such as Chara braunii. With Karl Schimper, he established the theory of spiral phyllotaxy. In his book Betrachtungern über die Erscheinung der Verjüngung in der Natur (1851) he made some significant contributions to the morphology of plants, to the biology of freshwater algae, and especially to cell theory. He opposed Darwinian selection, and remained a believer of “nature philosophy” when the doctrine was falling out of favour. |
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