The Collaborative International Dictionary of English v.0.48:

Pepperbrand \Pep"per*brand`\, n. (Bot.)
   See 1st Bunt.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Bunt \Bunt\ (b[u^]nt), n. (Bot.)
   A fungus (Ustilago f[oe]tida) which affects the ear of
   cereals, filling the grains with a fetid dust; -- also called
   pepperbrand.
   [1913 Webster]