FIGS. 13-16. Cataphylls of Dracontium. 13. D. asperum K. Koch (Zhu 1445), showing the longest (innermost) cataphyll subtended at base of petiole in the early stage of leaf development. 14. D. gigas (Zhu 1156), the longest cataphyll completely embracing the young leaf in very early stage of leaf development. 15. D. grayumianum G. Zhu (Zhu 1506), cataphyll above ground portion is darker than the underground portion. 16. D. pittieri Engler (Croat 59844, photo by Thomas Croat in 1985), dried out cataphylls after the leaf is fully matured.