1. Ashton, N.W., Cove, D.J. (1977) The isolation and preliminary characterisation of auxotrophic and analogue resistant mutants of the moss, Physcomitrella patens. Mol. Gen. Genet. 154, 87?95
2. Cove, D.J., Schild, A., Ashton, N.W., Hartmann, E. (1978) Genetic and physiological studies of the effect of light on the development of the moss, Physcomitrella patens. Photochem. Photobiol. 27, 249?254
3. Courtice, G.R.M. (1980) Developmental genetic studies of Physcomitrella patens. Ph. D. Thesis, University of Cambridge
4. Grimsley, N.H., Featherstone, D.R., Courtice, G.R.M., Ashton, N.W., Cove, D.J. (1980) Somatic hybridisation following protoplast fusion as a tool for the genetic analysis of development in the moss, Physcomitrella patens. In: Advances in protoplast research. Proc. Vth Int. Protoplast Symp., Szeged, Hungary, pp. 363?376, Ferenczy, L., Farkas, G.L., eds. Akademiai Kiado, Budapest
5. Hartmann, E., Klingenberg, B., Bauer, L. (1983) Phytochromemediated phototropism in protonema of the moss Ceratodon purpureus. Photochem. Photobiol. (in press)