Table. 2.

Zinc concentrations (µg g^− 1) (n = 4) and δ⁶⁶Zn isotopic ratios (‰) (n = 2) for field collected plant samples from the native habitat of D. subsp. pilosum and D. subsp. sumatranum. Concentrations are given in ranges and mean, and isotope ratios are given in ranges

Plant Fraction	Dichapetalum gelonioides subsp. pilosum			Dichapetalum gelonioides subsp. sumatranum
	Zinc concentrations (µg g -1 )	δ 66 Zn isotopic ratios (‰)	SD	Zinc concentrations (µg g -1 )	δ 66 Zn isotopic ratios (‰)	SD
Young Leaves	3750–11 100 [6970]	0.26–0.41	0.04–0.05	4250–32 400 [14 400]	0.24	0.06–0.08
Old Leaves	6370–11 200 [8350]	0.16–0.41	0.05–0.08	5370–30 800 [17 400]	0.33–0.35	0.04–0.07
Senescent Leaves	3740–9850 [6400]	0.26–0.39	0.04–0.07	–	–	–
Phloem tissue	3100–4050 [3580]	0.23–0.50	0.05	3420–15 800 [9610]	0.72–0.77	0.05–0.06
Young twigs	1910–5450 [4320]	0.27–0.37	0.06	250–13 400 [5620]	0.36–0.37	0.05
Old twigs	680–1850 [1330]	0.42	0.05–0.07	2250–7610 [4070]	0.7	0.07
Wood	640–2180 [1180]	0.18–0.48	0.03–0.06	780–13 700 [5550]	0.37–0.64	0.05
Main roots	2900–5470 [4010]	0.63–0.66	0.05–0.06	1860–25 300 [11 200]	0.61–0.62	0.04–0.05

SD standard deviation (instrumental analysis variability)