1. Variation and hybridization in southern California populations of Diplacus (Scrophulariaceae);Beeks;Aliso,1962
2. Bentham , G. 1846 Scrophulariaceae In De Candolle Prodromus systematis naturalis regni vegetabilis 10 368 374
3. Bentham , G. J. D. Hooker 1876 Scrophulariaceae 946 947
4. Documental chromosome numbers of plants;Bostick;SIDA Contrib. Bot.,1965
5. Mendelian analysis of the “red-orange-yellow” group of flower-colours in Mimulus cardinalis Hort;Brozek;Preslia,1932