Typification of the North American species of Trillium subg. Trillium (Melanthiaceae: Parideae)

Philodendron josephii (Araceae), a new species from central Amazonia, Brazil

Morphological, geographic and ecological evidence support a new species of Chusquea subg. Swallenochloa (Poaceae, Bambusoideae, Bambuseae) from Parque Nacional do Caparaó, Brazil

Tallapoosa Cane (Arundinaria alabamensis), a new species of temperate bamboo (Poaceae: Bambusoideae) from East Central Alabama

Two newly recorded species of Aspidistra (Asparagaceae) for the flora of China: A. obliqua and A. triradiata

Lagenandra limbusleviterapertae, a new addition to the genus Lagenandra (Araceae) from Sri Lanka

Taxonomic notes on Thrixspermum (Orchidaceae: Aeridinae), with five new species from Thailand

A flower in paradise: citizen science helps to discover Thismia paradisiaca (Thismiaceae), a new species from the Chocó Biogeographic region in Colombia

Thismia pseudomelanomitra (Thismiaceae), a new mycoheterotrophic species from Brazilian Amazon Forest

Lepanthes cordillerana (Orchidaceae) a new species and the landscape threats to its wild populations