There were 2 illustrations found for F. Roberts
2 677958 Monardella stoneana Elvin & A.C.SandersNovon, vol. 13 : p. 427, fig. 1 (2003) [F. Roberts & Fred]
Monardella sp.Novon, vol. 13 : p. 429, fig. 3 (2003) [F. Roberts]
2 677958 Monardella stoneana Elvin & A.C.SandersMonardella sp.