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Table S1 δ13C data from untreated pollen, chemically treated pollen (sporopollenin) and leaves of specimens from the Rocky Mountain Herbarium

Table S2 r2 values for ordinary least-squares regressions among sporopollenin Δ and seasonal vapor pressure deficit (VPD), precipitation amount and the Palmer Drought Severity Index (PDSI)

Table S3 r2 values for ordinary least-squares regressions among leaf Δ and seasonal vapor pressure deficit (VPD), precipitation amount and the Palmer Drought Severity Index (PDSI)

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NPH_4219_sm_TableS1-S3.pdf189KSupporting info item