Figure 4 from: Kommineni VK, Tautenhahn S, Baddam P, Gaikwad J, Wieczorek B, Triki A, Kattge J (2021) Comprehensive leaf size traits dataset for seven plant species from digitised herbarium specimen images covering more than two centuries . Biodiversity Data Journal 9: e69806. https://doi.org/10.3897/BDJ.9.e69806

Figure 4 Temporal distribution of metadata for 9,998,299 digital herbarium specimen images from iDigBio and GBIF for Tracheophyta (excluding Polypodiopsida, Poales, Marattiopsida, Pinopsida, Lycopodiopsida and Equisetopsida) with georeference and sampling date available (for more details, refer to section 'Sampling methods')