Jacob's ladder (Polemonium caeruleum) Greek Valerians; with blue flowers. / Valeriana graeca peregrima / La Valeriane gr脙陋que (title on object); Jacobs ladder or Greek valerian. Numbered top right: 261. Top right the Latin name. Part of the third album with drawings of flowers and plants. Tenth of twelve albums with drawings of animals; birds and plants known around 1600; commissioned by Emperor Rudolf II. With explanations in Dutch; Latin and French; Anselmus Boetius de Boodt; 1596 - 1610; paper; watercolor (paint); deck paint; chalk; ink; pen; h 264 mm 脙鈥?w 169 mm