Extrafloral nectary and leaf margin diversity of Humiriaceae. A Vantanea depleta laminar glands, abaxial B Duckesia liesneri basilaminar glands, adaxial C Schistostemon oblongifolius basilaminar glands, adaxial D Humiriastrum ottohuberi laminar glands, abaxial E Duckesia verrucosa robust seta at margin F Sacoglottis guianensis basilaminar glands, adaxial G Humiria fruticosa shoot tip with marginal glands exposed on expanding new leaf H Humiria fruticosa marginal gland I Hylocarpa heterocarpa laminar gland, abaxial J Humiria balsamifera var. minarum dense row of marginal glands, abaxial K Duckesia verrucosa laminar gland, abaxial L Schistostemon retusus darkened scar from deciduous seta M Schistostemon retusus intact seta at margin. g = gland, s = seta scar. Sources: A Mori & Kallunki 4889 B Liesner 22589 C Maas et al. 6804 D Maguire 34912 E, K Ducke 2108 F Jansen-Jacobs et al. 1898 G, H Steyermark 103255 I Ducke [JBRJ-30137] J Mexia 5815 L Redden 3372 M Cuatrecasas 7203 (all US).