Plate LX.
Fig. 1. Humulus lupulus in fruit.
Fig. 2. Fertile flowers.
Fig. 3. Calyx and pistil of do. (the corolla omitted by mistake of the engraver.)
Fig. 4. Barren flowers.
Fig. 5. Stamen magnified.

This image is from Humulus lupulus in American Medical Botany, Bigelow, 1817-1821.