FIGS. 54-57. Spadix of Dracontium. 54. D. spruceanum (Zhu 1486), narrowed cylindric. 55. D. polyphyllum L. (Zhu 1462), same as previous figure. 56. D. amazonense G. Zhu (Zhu 1460). 57. D. soconuscum Matuda (Zhu 1502), showing appendages at spadix apex.