Modern sequels to the Kaiserin-Augusta-Fluss itinerary of Carl Ledermann: floristic discoveries from the upper Sepik of Papua New Guinea
A New Species of Mucuna (Leguminosae-Papilionoideae-Phaseoleae) from Costa Rica and Panama
Lectotypification of the name Helianthus dentatus Cav., basionym of Viguiera dentata (Cav.) Spreng. (Asteraceae: Heliantheae)
Handroanthus grandiflorus (Bignoniaceae), a new species from the semiarid region of Brazil
Validating Clitoria annua var. sekharii (Fabaceae: Clitoriinae)
The new monotypic genus Bardotia (Orobanchaceae) from Madagascar and remarks on the phylogenetic relationships of the African and Madagascan genera Parastriga, Radamaea, Rhamphicarpa and Sieversandreas
On African violets and Cape primroses—towards a monophyletic Streptocarpus (Gesneriaceae)
New taxa in Diplusodon (Lythraceae) from Brazil
Lectotypification of three names in Gaultheria L. (Ericaceae)
A revision of Genlisea subgenus Tayloria (Lentibulariaceae)