Achnanthes citronella, A. trachyderma comb. nov. (Bacillariophyta) and allied taxa pertaining to the same morphological group
The diatom genus Oricymba in Vietnam and Laos with description of one new species, and a consideration of its systematic placement
Sedum album subsp. rupi-melitense (Crassulaceae), a new vegetatively reproducing subspecies from Malta (Maltese Islands, Central Mediterranean)
A new and endangered species of Iochroma (Solanaceae) from the cloud forests of central Peru and its phylogenetic position in Iochrominae
A new species of Sinningia (Gesneriaceae) and additional floristic data from Serra dos Carajás, Pará, Brazil
A new species of Simaba sect. Grandiflorae (Simaroubaceae) from Jalapão region, Tocantins, Brazil
Lectotypification of four names in Andrographis (Acanthaceae)
Tillandsia chalcatzingensis, a new species from the state of Morelos, Mexico
Sorbus dolichofoliolatus (Rosaceae), a new species from Yunnan, China
