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. 2011 Apr 22;23(4):1194–1207. doi: 10.1105/tpc.111.084244

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© 2011 American Society of Plant Biologists

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Figure 5. — Floral Organ Initiation and Development in Irregular (Zygomorphic) Flowers.

Plate from Barnéoud (1846): Collinsia bicolor, Plantaginaceae (illustrations 1 to 7); Antirrhinum majus, Plantaginaceae (illustrations 8 to 14); Lamium garganicum, Lamiaceae (illustrations 15 to 20); Phlomis fruticosa, Lamiaceae (illustrations 21 to 25); Scabiosa ucranica, Dipsacaceae (illustrations 26 to 30); Aristolochia pistolochia, Aristolochiaceae (illustrations 31 to 34); Cytisus nigricans, Fabaceae (illustrations 35 to 36); Orchis galeata, Orchidaceae (illustrations 37 to 43). (Image courtesy of the Library of the Arnold Aboretum of Harvard University.)