1. Notes on the chromosomes of the duckweeds (Lemnaceae) introducing the question of chromosome size;Blackburn,1933
2. Increase of chromosome numbers in species hybrids of Saccharum;Bremer;Hereditas,1949
3. Increase of chromosome numbers in species hybrids of Saccharum;Bremer;Bibliogr. Genet.,1959
4. Problem in breeding and cytology of sugar cane. IV. The origin of the increase of chromosome numbers in species hybrids of Saccharum;Bremer;Euphytica,1961
5. Mitotic instability in blackberry seedlings;Britton;J. Hered.,1956