Antoine Laurent de Jussieu (
1748-
1836) was a
botanist who classified many of the
families used today. Prior to him,
Linnaeus classified plants into families based on the number of stamens and pistils. This put a lot of unrelated plants together and split some related ones apart. Jussieu classified plants based on (?). His name is abbreviated as "Juss." after the names of families and genera.