1. A cytological study of cleistogamous Stipa leucotricha;Brown;Madroño,1949
2. A cytological study of some Texas Gramineae;Brown;Bull. Torrey Bot. Club.,1950
3. Somatoplastic sterility as a cause of seed failure after interspecific hybridization;Cooper;Genetics,1940
4. Collapse of seed following the mating of Hordeum jubatum X Secale cereale;Cooper;Genetics,1944
5. Seed collapse following matings between diploid and tetraploid races of Lycopersicon pimpinelli-folium;Cooper;Genetics,1945