He was best known for his work on the flora of the Swiss Alps, cryptogams, and the Polygalaceae or Milkwort plant family, as well as his years in the publishing industry.
Under the Cronquist classification system, Polygalaceae were treated in a separate order of their own, Polygalales.
Placement of the genus within a family has previously been considered a difficult problem; it has at various times been placed in Capparaceae, Sapindaceae, Goodeniaceae and, in the Cronquist system, Polygalaceae.
an orthographic variant used by the author of Jakkia Blume, published in 1823, in family Polygalaceae