Beyond taxonomy: anther skirt is a diagnostic character that provides specialized noctuid pollination in Marsdenia megalantha (Asclepiadoideae–Apocynaceae) Arthur Domingos-MeloTarcila L. NadiaIsabel C. Machado Original Article 27 November 2018 Pages: 103 - 114
Comparative pollen–pistil interactions and insect pollination in two Hypoxis species (Hypoxidaceae) in China and North America Zong-Xin RenPeter BernhardtHong Wang Original Article 03 December 2018 Pages: 115 - 126
Hybridization, coexistence, and possible reproductive interference between native Oxalis corniculata and alien O. dillenii in Japan Misaki FukatsuSachiko HorieIkumi Dohzono Original Article 28 November 2018 Pages: 127 - 137
Phylogeny and biogeography of the narrowly endemic Doronicum cataractarum (Asteraceae) from the eastern European Alps: Pleistocene origin from Alpine ancestors rather than Tertiary relic with southwest Asian affinity Stefanie SkofInes ÁlvarezGerald M. Schneeweiss Original Article Open access 28 November 2018 Pages: 139 - 149
Pollen morphology in natural diploid–polyploid hybridogeneous complex of the genus Onosma (Boraginaceae–Lithospermeae) V. KolarčikD. VaškováP. Mártonfi Original Article 13 December 2018 Pages: 151 - 168
Morphometric analysis and the distinction between Tibouchina hatschbachii and T. marumbiensis: morphological differentiation driven from the past Fabiano R. MaiaRenato Goldenberg Original Article 14 December 2018 Pages: 169 - 180