A revision of Centaurea sect. Cynaroides (Asteraceae, Cardueae—Centaureinae)
Delimitation and revision of the genus Thymbra (Lamiaceae)
Taxonomic notes on Iris ser. Lacteae (Iridaceae) with typifications of fifteen names and one new combination
Notes on Gunnera (Gunneraceae) in Brazil and Uruguay
A contribution to the taxonomy of the genus Rhaponticoides (Asteraceae, Cardueae)
Comparative wood anatomy of eight tree species of Mimosa sect. Batocaulon (Leguminosae) distributed in Mexico and their taxonomic implications
Lecanoroid lichens in the Galapagos Islands: the genera Lecanora, Protoparmeliopsis, and Vainionora (Lecanoraceae, Lecanoromycetes)
Two new species of Pontederia L. (Pontederiaceae Kunth) to South America
Cyanus uysalii (Asteraceae, Cardueae), a new combination for the flora of Turkey