G. Ledyard Stebbins

George Ledyard Stebbins, Jr. (January 6, 1906 – January 19, 2000) was a American and botanist and geneticist regarded as one of the leading evolutionary biologists and foremost botanists of the twentieth century.

Sourced

• I didn't add any new elements [to the modern synthetic theory] to speak of. I just modified things so that people could understand how things were in the plant world.
  • G.Ledyard Stebbins, January 6, 1906-January 19, 2000. Spring 2000, UC Davis Alumni newsletter

Unsourced

• The only generalization or law that holds in biology is that exceptions exist to every law.