• Akeroyd, J. R. & Briggs, D. (1982) Genecological studies of Rumex crispus L. I. Garden experiments using transplanted material. New Phytologist, 94, 309323.
  • Baker, H. G. (1955) Self compatability and establishment after ‘long-distance’ dispersal. Evolution, Lancaster, PA, 9, 347349.
  • Baker, H. G. (1967) Support for Baker's Law-as a rule. Evolution, Lancaster, PA, 21, 853856.
  • Black, J. N. (1957) The early vegetative growth of three strains of subterranean clover in relation to size of seed. Australian Journal of Agricultural Research, 8, 114.
  • Black, J. N. (1958) Competition between plants of different initial seed sizes in swards of subterranean clover (Trifolium subterraneum) with particular reference to leaf area and the light microclimate. Australian Journal of Agricultural Research, 9, 299318.
  • Briggs, D. & Walters, S. M. (1969) Plant Variation and Evolution. Weidenfeld & Nicholson, London .
  • Cavers, P. B. & Harper, J. L. (1964) Biological Flora of the British Isles. No. 98. Rumex obtusifolius L. and R. crispus L. Journal of Ecology, 52, 737766.
  • Cavers, P. B. & Harper, J. L. (1966) Germination polymorphism in Rumex crispus and Rumex obtusifolius. Journal of Ecology, 54, 367382.
  • Dobzhansky, T. & Pavlovsky, O. (1957) An experimental study of interaction between genetic drift and natural selection. Evolution, Lancaster, PA, 11, 311319.
  • Dudgeon, W. (1918) The morphology of Rumex crispus. Botanical Gazette, 66, 393420.
  • Harper, J. L. & Obeid, M. (1967) Influence of seed size and depth of sowing on the establishment and growth of varieties of fibre and oil seed flax. Crop Science, 7, 527532.
  • Kay, Q. O. N. (1972) Variation in Sea Mayweed (Tripleurospermum maritimum (L.) Koch) in the British Isles. Watsonia, 9, 81107.
  • Le Deunff, Y. (1974) Hétérogénéité de la germination des semances de Rumex crispus mise en évidence et essai d'interpretation. Physiologia Plantarum, 32, 342346.
  • Lousley, J. E. (1939) Notes on British Rumices I. Botanical Exchange Club Report, 12, 118157.
  • Lousley, J. E. (1944) Notes on British Rumices II. Botanical Exchange Club Report, 12, 547585.
  • Lousley, J. E. & Williams, J. T. (1975) Rumex L. In: Hybridization and the flora of the British Isles (Ed. by C. A.Stace), pp. 278292. Academic Press, London .
  • Ridgman, W. J. (1975) Experimentation in Biology. Blackie, Glasgow .
  • Tutin, T. G. et al., eds. (1964 to 1980). Flora Europaea, vols 1–5. Cambridge University Press, Cambridge .
  • Wilkins, D. A. (1959) Sampling for genecology. Scottish Plant Breeding Station Record, 1959, 9296.
  • Williams, J. T. (1971) Seed polymorphism and germination. II. The role of hybridisation in the germination polymorphism of Rumex crispus and R. obtusifolius. Weed Research, 11, 1221.
  • Wood, D. W., Longden, P. C. & Scott, R. K. (1977) Seed size variation; its extent, source and significance in field crops. Seed Science and Technology, 5, 337352.