232 



A NEW BRITISH SPECIES OF SENECIO 



i 

 I 



It is a pleasure to record my thanks to Mr. H. E. Green both for material and 

 information, to Professor S. C. Harland for permission to make use of experimental 

 evidence, to Mr. J. Ellis for the chromosome count of S. camhrensis and to Mr. G. B. 

 Kerferd who kindly revised the grammar of my Latin diagnosis. 



REFERENCES 



AFZELIUS, K., 1924, Embryologische und zytologische Studien in Senecio und verwandten Gattungen, 

 Acta Horti Bergiani, 8, 123-219. 



, 1949, On chromosome numbers in Senecio and some allied genera, ibid., 15, 65-77. 



LOUSLEY, J. E., 1955, The British Flora during 1954, Nature, 175, 200. 



TISCHLER, C, 1950, Die Chromosomenzahlen der Gefdsspflanzen Mitteleuropas ; 's Gravenhage. 



