Figure 1.Pilea matthewii. A Habit of pistillate plant; note the sessile unequal leaf laminae at each node B Branchlet of staminate plant; note the unequal leaf laminae at each node C Leaf detail (upper surface of minor lamina) showing cystoliths D Staminate inflorescence E Staminate flower F Staminate flower showing anthers G Pistillate inflorescence H Pistillate flower. (A–C, G, H from L.J. Dorr et al. 4994 (US); D–F from B. Stergios et al. 20080 (US)).
Figure 2.Pilea miguelii. A Habit; note the unequal leaf laminae at each node B Leaf detail (major lamina upper surface) showing cystoliths C Staminate inflorescence D Detail of staminate inflorescence. E Staminate flower showing tepals covering anthers F Pistillate inflorescence G Pistillate flower H Pistillate flower with tepals teased apart to show mature ovary. (A from B. Stergios & M. Niño 16028 (PORT); B–E from B. Stergios & M. Niño 16028 (US); F–H from J.A. Steyermark 55767 (US)).
Figure 3.Pilea nicholasii. A Habit; note the unequal leaf laminae at each node B Leaf detail (major lamina upper surface) showing cystoliths C Stipules, stem, and petiole bases with cystoliths D Staminate inflorescence E Staminate flower ± in bud F Staminate flower showing stamens G Infructescence H, I Pistillate flowers with developing achenes. (A, D–F from B. Stergios et al. 20074 (US); B, C from B. Stergios & R. Caracas 19671 (US); G–I from B. Stergios 19986 (US)).
Figure 4.Pilea nidiae. A Habit; note the unequal leaf laminae at each node B Leaf detail (major lamina upper surface) showing cystoliths C Stipules and stem covered with cystoliths D Staminate inflorescence E Infructescence F, G Pistillate flowers with developing achenes. (A, D from J.L. Luteyn & E. Cotton 9705 (NY); B, C from J.A. Steyermark 55533 (US); E–G from B. Stergios & R. Caracas 19810 (US)).