1. Acton, E. (1914). “Observations on the Cytology of the Chroococcaccac.”Ann. Bot. Vol. XXVIII.
2. Bateson, W. (1894).Materials for the Study of Variation. London.
3. Blackman, F. F. (1921). “The Biochemistry of Carbohydrate Production in the Higher Plants from the point of view of Systematic Relationships.”New Phytol. Vol. XX.
4. Bornet, E. and Thuret, G. (1876–1880).Notes algologiques. Paris.
5. Borzi, A. (1879). “Nota alla morfologia biologica delle Alghc ficochromacee.”Nuovo Giorn. Bot. Ital. Vol. XI.