Over- and under-described: new species, new synonyms, and a new name in the megadiverse genus Piper (Piperaceae) on the east Andean slopes
Isotrema guangdongense (Aristolochiaceae), a new species from Guangdong, South China
A new combination in Ocotea Aubl. and notes on the nomenclatural status of two new names recently proposed in Lauraceae
Note on the typification of Enneastemon seretii var. tisserantii (Annonaceae)
Asarum chueyi (Aristolochiaceae), a new species from the foothills of the Blue Ridge Mountains of Tennessee and Virginia, USA
A new species of Triphora (Orchidaceae: Triphoreae, Triphorinae) from Mexico