Fig. 2
From: Using chemical and DNA marker analysis to authenticate a high-value food, manuka honey
Concentration of chemical markers in the nectar of the plant species collected in 2014/2015 from New Zealand and Australia. Plant species have been abbreviated as follows: Other spp. (4 species from New Zealand); W. rac (Weimannia racemosa); L. sco NZ (Leptospermum scoparium from New Zealand); L. sco Aus (L. scoparium from Australia); L. liv Aus (L. liversidgei from Australia); and Other Lep spp. NZ (13 other Leptospermum species from New Zealand). a 2′-methoxyacetophenone; b leptosperin; c 2-methoxybenzoic acid; d 3-phenyllactic acid; e 4-hydroxyphenyllactic acid; f methyl syringate; g dihydroxyacetone; h 4-methoxyphenyllactic acid; i lumichrome. The distribution of the data is summarised in boxplots (the central line, median; box limits, first and third quartiles; whiskers, 1.5× inter-quartile range; points, outlier data beyond the end of the whiskers) and the concentration for individual samples are plotted
