Stamen structure of Humiriaceae. A Duckesia verrucosa tetrasporangiate anther, dorsal B Duckesia verrucosa tetrasporangiate anther, lateral C Duckesia liesneri tetrasporangiate anther, lateral D Endopleura uchi disporangiate anther, lateral E Endopleura uchi tetrasporangiate anther, lateral F Duckesia verrucosa sterile anther, lateral G Humiriastrum cuspidatum disporangiate anther, lateral H Humiriastrum cuspidatum androecium, dorsal I Endopleura uchi tetrasporangiate anther, lateral J Humiriastrum dentatum disporangiate anther, lateral K Humiriastrum dentatum disporangiate anther, ventral L Humiriastrum diguense disporangiate anther, lateral M Humiria balsamifera var. imbaimadaiensis stamen cluster with 2 of 3 types, dorsal. f = filament attachment location. Sources: A, B, F Ducke 2108 C Henderson 933 D, E, I Assunção 605 G, H Cid et al. 4264 J, K Hatschbach 56145 L Quizhpe et al. 612 M Wurdack 4814 (all US.)

  Part of: Wurdack KJ, Zartman CE (2019) Insights on the systematics and morphology of Humiriaceae (Malpighiales): androecial and extrafloral nectary variation, two new combinations, and a new Sacoglottis from Guyana. PhytoKeys 124: 87-121.