Integrating palaeo- and archaeobotanical data for a synthesis of the Italian fossil record of Lycopus (Lamiaceae, Mentheae)
New Amphicocconeis (Bacillariophyta) from Raivavae and Tahiti Islands (South Pacific) and Porto Belo (Brazil), with re-examination of Psammococconeis
Polygonatum caulialatum, a new species of medicinal plant of Polygonatum (Asparagaceae) from Sichuan, China
New country records for species of Boraginaceae and Lamiaceae in the Horn of Africa hotspot
Thottea aroangensis, a new species of Aristolochiaceae from central Vietnam
The valid publication and identity of Aristolochia compressicaulis (Aristolochiaceae)
Mehregan, I., Younesi, S. & Liden, M. (2021). Donysia avia (Primulaceae), a new species from Zagros Mountains (Iran). Phytotaxa 511 (3): 296–300.