1. Evolution of the Welsh ragwort (Senecio cambrensis);Abbott;Am. J. Bot.,1989
2. The vegetation of British salt marshes;Adam;New Phytol.,1981
3. Spartina townsendii, A valuable grass for reclamation of tidal mud-flats;Allan;N. Z. J. Agric.,1930
4. The Gramineae.;Arber,1934
5. Chromosome associations at pachytene and metaphase in Medicago sativa;Armstrong;Can. J. Genet. Cytol.,1971