Annals of Botany 116: 101–112, 2015
Since the publication of this paper, it has become apparent that an error was made in the legend to Fig. 3 and the colours referring to occidental and oriental are the wrong way round. The authors apologise for this error, and a correct version of the legend to Fig. 3 is given below.
Fig. 3. Frequencies of the occidental (green column charts) and oriental (red column charts) chlorotypes.