New and noteworthy species of Begonia (Begoniaceae) from Vietnam and Laos
A new species of climbing Chamaedorea (Arecaceae) from Chiapas, Mexico
Taxonomic notes on the genus Dumasia (Fabaceae)
Ditiola haasii (Basidiomycota, Dacrymycetaceae)—taxonomy and ecology of a rare species from Central Europe
A new endemic species of Acanthocereus (Cactaceae) from southern Jalisco, Mexico
Notes in Brazilian Vernonieae (Asteraceae): two new combinations and a range expansion
Bulbophyllum xuansonii (Orchidaceae), a new miniature orchid from northern Vietnam and new national record of B. gracilipes
Eugenia saxatilis (Myrtaceae), a new species from Minas Gerais, Brazil
Dendrobium neoconcolor, a new name for Flickingeria concolor (Orchidaceae) and notes on D. concolor hort.
Leplat, J., François, A. & Bousta, F. (2021) Simplicillium pech-merlensis, a new fungal species isolated of the Pech-Merle show cave. Phytotaxa 521 (2): 80–94.