1. Chromosome numbers of some mosses of Florida;Al-Aish;J. Elisha Mitchell Sci. Soc.,1960
2. Chromosome studies in the genus Sphagnum;Bryan;Bryologist,1955
3. Étude de la mitose et spécialement du mégachromocentre chez quelques muscinées;Ho;Rev. Gén. Bot.,1956
4. Cytotaxonomical studies in some Danish mosses;Holmen;Bot. Tidsskr.,1958
5. B chromosomes in two moss species;Inoue;Misc. Bryol. Lichenol.,1968