Jardin de rares et curieux fleurs - Francois de Geest de Leovarde en Frise - 1660 - via Internet Archive
Tulpenboeken - Jacob Marrel - 1634 - via Internet Archive
Tulpenboeken - Jacob Marrel - 1634 - via Internet Archive
Flowers in a stoneware vase on a ledge with a lizard and a snail - Jacob Marrel - 17th c. - via Christie's
Elliott's bulb offers - Elliott Nursery Co. - 1926 - via Internet Archive
Illustrierte Flora von Mitteleuropa - Band II. Monocotyledones - Gustav Hegi - 1907 - via Heinrich Heine Universität Düsseldorf
The English flower garden - William Robinson - 1893 - via Internet Archive
ABC-Bilderbuch - Wilhelm Hey, Mathilde Coester - 1905 - via Staatsbibliothek zu Berlin
The original Hans Thoma drawing is available from the Städel Museum.
Macédoines (Blumenstrauß in einer Vase) - Edouard Traviès - 1850 - via MAK Collection
Joris Hoefnagel and Georg Bocskay - Gesner'sTulip, Ichneumon Fly, Kidney Bean, and Scarlet Runner Bean - 16th c. - via Getty Open Content
Joris Hoefnagel and Georg Bocskay - Caterpillar, Pear, Tulip, and Purple Snail - 16th c. - via Getty Open Content
Joris Hoefnagel and Georg Bocskay - Rocket Larkspurs, Tulip, Scorpion, Millepede, and European Filbert - 16th c. - via Getty Open Content
La Tulipe Noire. Contes de la fileuse - Jérôme Doucet, illustrations by Alfred Garth Jones - 1900 - via Internet Archive
Papier à motif répétitif - Jacquemart et Bénard (Paris) - 1799 - via Gallica
Joris Hoefnagel - Animalia Qvadrvpedia et Reptilia (Terra): Plate XLII - c. 1575-1580 - via NGA
Album van Eeden: Haarlem’s flora - A.C. van Eeden & Co., Arentine H. Arendsen, Loosjes Erven, and G. Severyns - 1872 - via Internet Archive (edited for color)
Blumen-Ornamentik - Josef Pilters - 1900 - via Staats- und Universitätsbibliothek Dresden (SLUB)