The genus Callitriche (Plantaginaceae, Callitricheae) in Australasia and Oceania

Quararibea alversonii (Malvaceae; Malvoideae), a new species from the Brazilian Atlantic Forest

Bixa atlantica sp. nov. (Bixaceae), a new species of wild annatto from the Atlantic Forest of eastern Brazil

Ruellia umbrosa (Ruellieae, Acanthaceae) a new and critically endagered species from Lowlands of the Goiás state, Brazil

Impatiens jacobdevlasii (Balsaminaceae), a new species from Knuckles massif of Sri Lanka

Synopsis of Sida (Malvoideae, Malvaceae) in the state of Rio Grande do Sul, Brazil

A new species of Lasianthus (Rubiaceae) from Kon Chu Rang Nature Reserve in central highlands of Vietnam

NOVELTIES IN BRAZILIAN BEGONIACEAE V: a new species from southern São Paulo state

Lithocarpus eiadthongii (Fagaceae), a new stone oak species from southern part of Thailand

Cynosurus peltieri (Pooideae, Poaceae), a poorly known species endemic to the Algerian-Tunisian terrestrial flora: further insights on its occurrence, IUCN Red List assessment, and lectotypification