Table 10 Data dictionary for assimilation-temperature response data (dataset vii).

Variable name	Description	Variable type	Variable range or levels	Units	How measured
obs	Observation	numeric	1–127		recorded
species	Sampled species	character	Dimorphotheca jucunda - Senecio glaberrimus		recorded
E	Transpiration rate	numeric	0–0.030	mol m⁻² s⁻¹	derived
A	Photosynthetic rate	numeric	−0.901–26.26	µmol m⁻² s⁻¹	derived
Ca	Ambient CO₂	numeric	145.584–419.876	µmol mol⁻¹	recorded
Ci	Intercellular CO₂	numeric	−849.256–408.586	µmol mol⁻¹	recorded
RHcham	Chamber relative humidity	numeric	1.821–82.752	%	recorded
VPDleaf	Vapor pressure deficit of leaf to air	numeric	0.198–6.144	kPa	derived
gsw	Stomatal conductance rate	numeric	−457.750 −3331.072	mol m⁻² s⁻¹	derived
Flow_s	Sample flow rate	numeric	146.585–681.491	µmol s⁻¹	recorded
Flow_r	Reference flow rate	numeric	148.404–867.389	µmol s⁻¹	recorded
Txchg	Temperature of the heat exchanger	numeric	−0.717–48.328	°C	recorded

Reports on data from 96 leaves sampled at different aspects on an elevation gradient in Witsieshoek, South Africa names, description, variable type, ranges or levels, units, and short description are given for all variables. Note that variables that are shared across datasets are reported in Table 2.

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