Revision of herbarium specimens of freshwater Enteromorpha-like Ulva (Ulvaceae, Chlorophyta) collected from Central Europe during the years 1849–1959
Nomenclatural notes on Stelis ciliaris (Pleurothallidinae, Orchidaceae)
A taxonomic synopsis of the Mexican species of Acianthera (Orchidaceae: Pleurothallidinae) including a new species
Kali dodecanesicum (Chenopodiaceae, Salsoloideae) a new species from Greece
Two new species of Calanthe (Orchidaceae: Epidendroideae) from Korea
Taxonomic notes on Brazilian Encyclia (Orchidaceae: Laeliinae)
Multi-gene phylogeny of Pithomyces with the sexual morph of P. flavus Berk. & Broome
Pombalia barbata, a new species of Violaceae endemic to the Brazilian Caatinga
The identity of Casearia membranacea f. nigrescens (Salicaceae)