Appendix to IAWA 2222

  

Fig. A1. Sampling scheme and eco-geographic species distribution patterns. Map colors denote ecoregions of Madagascar following Dinerstein et al. (2017) (see bottom-right legend). Circles represent sampling sites. The number in each circle represents the number of Dalbergia collections made at each sampling site (n = 93, new dataset). Together, the number and circle proportions indicate the number of collections made for each species (see legends for the three main eco-geographic regions).

Fig. A2. Wood anatomical and bioclimatic features with high Spearman’s rank correlation in Malagasy Dalbergia. Correlations were computed based on 101 collections (93 new dataset, 8 Atlas dataset) and bioclimatic values extracted from the CHELSA Bioclim database (Karger et al. 2017), at each collection’s geo-coordinate. Variable pairs with absolute correlation coefficients <0.7 are not shown. The high specific correlations (absolute coefficient  larger or equal 0.7) are highlighted in bold. See Table 1 for codes of wood anatomical features.

Fig. A3. Relationships between selected wood anatomical features and bioclimatic variables in 101 Malagasy Dalbergia collections (93 new dataset, 8 Atlas dataset). Species are represented as color-coded spider graphs, where each tip represents the median of repeated measures in single collections, and each node represents the species mean. Color-coded hulls denote ecoregions of Madagascar following Dinerstein et al. 2017 (see Fig. A1). (A) Relationship between precipitation seasonality (x-axis), temperature seasonality (y-axis), annual range of air temperature (symbol size) and the presence (circles) or absence (squares) of distinct growth rings. The uncommon growth rings feature in each ecoregion is highlighted with opaque rather than transparent symbols. (B) Negative relationship between vessel element length and precipitation seasonality. (C) Positive relationship between precipitation seasonality (x-axis) and vessel density (y-axis). (D) Negative relationship between precipitation seasonality (x-axis) and tangential vessel diameter in diffuse-porous wood (y-axis).

Table A1. Specimen information for Malagasy Dalbergia collections of the new dataset (n = 93).

Table A2. Wood anatomical characterization of Malagasy Dalbergia collections of the new dataset (n = 93).

Table A3. Specimen information and determination history for Malagasy Dalbergia collections of the Atlas dataset (8 included in Figs. 4–5) and the Détienne dataset (9 collections of 4 taxa included in Fig. 4).

Table A4. Eight bioclimatic variables extracted from the CHELSA version 1 Bioclim database (Karger et al. 2017) at the geo-coordinates of Malagasy Dalbergia collections of the new dataset (n = 93) and the atlas dataset (n = 8).

Table A5. Characters of potentially diagnostic significance.

Table A6. Repeated raw measurements of quantitative features of the new dataset.