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REFERENCES

  • Porsild, Morten P. (1932). Alien plants and apophytes of Greenland, Medd. Grønl. 92, no. 1, pp. 185, 2 pis.
  • Porsild, Morten P. (assisted by Porsild, A. Erling) (1920). The flora of Disko Island and the adjacent coast of West Greenland. First part, Saertryk af Meddedelelser om Grønland, 58, 156 pp. Copenhagen .
  • Porsild, A. Erling (1926). Contributions to the Flora of West Greenland. Saertryk af Meddedelelser om Grønland, 58, 159196. Copenhagen .
  • Reid, C. (1914). Armeria artica Wallr. Fossil in Britain. J. Bot., Lond., August 1914.
  • Reid, C. (1916). The plants of the Late Glacial Deposits of the Lea Valley. Quart. J. Geol. Soc. 71, pt. 2, pp. 15161 & pl. xv.
  • Reid, E. M. & Chandler, M. E. J. (1923). The Barrowell Green (Lea Valley) Arctic Flora. Quart. J. Geol. Soc. 79, pt. 4, pp. 604, 605.
  • Reid, E. M. & Chandler, M. E. J. (1924). On the occurrence of Ranunculus hyperboreus Rottb. in Pleistocene beds at Bembridge, Isle of Wight. Proc. Is. Wight Nat. Hist. Soc., 1, pt. v, pp. 2924.