Figure 3 from: Fernando E, Quimado M, Doronila A (2014) Rinorea niccolifera (Violaceae), a new, nickel-hyperaccumulating species from Luzon Island, Philippines. PhytoKeys 37: 1-13. https://doi.org/10.3897/phytokeys.37.7136

Figure 3 - Rinorea niccolifera Fernando, shown as a nickel hyperaccumulator by a field test using filter paper impregnated with 1% dimethylglyoxime dissolved in 95% ethanol. Scale bar = 10 mm. Fernando 2421 (LBC). Photograph by Edwino S. Fernando.