Figure 5

Specimens of Tulipa sylvestris collected by sixteenth-century botanists. Leonhard Rauwolf, northern Italy, 1563. Naturalis Biodiversity Center (a). Andrea Cesalpino, Pisa, 1563. Museo di Storia Naturale—Collezioni Botaniche, Università di Firenze (b). Caspar Bauhin, Basel, ca. 1600–1621. Herbarien Basel, Universität Basel, BAS-B03-069 (c).