FIGURE 1 in Enabling comparisons of characters using an Xper2 based knowledge-base of fern morphology

FIGURE 1. Descriptions provided as interactive windows thanks to Xper² interface. A: List of taxa. B: Taxon complementary data (e.g., author's name). C: Descriptive model (i.e., list of characters with parent-child relationships). D: Definition and reference of the character, ontology ID for major concepts and related terms. E: Summary of the parent-child relationships for the character. F: List of Character states with the value(s) selected for each taxon (including unknown data). G: Character state complementary data (e.g., illustration).