1. Chromosome numbers in some Brazilian Compositae;Coleman J.R.;Rhodora,1968
2. Additional chromosome numbers in Brazilian Compositae;Coleman J.R.;Rhodora,1970
3. Chromosome studies in Argentina species of Stevia (Compositae);Galiano N.G.;Darwiniana,1987
4. Karyological studies in Compositae: IV. Vernonieae and Eupatorieae;Galiano N.;Darwiniana,1987
5. Chromosome number in North and Central American Compositae;Grashoff J.L.;Brittonia,1972