A new species of Nagumoea (Bacillariophyta) from Antarctica, and a further consideration of the systematic position of the genus

Cocconeis kurakakea, a new diatom species from Nukutavake (Tuamotu Archipelago, South Pacific): description and comparison with C. diruptoides and C. pseudodiruptoides

Taxonomy and nomenclature of Salix baileyi, S. rehderiana, and S. disperma

Aquilegia yangii (Ranunculaceae), a new species from western China

Helminthosporium submersum sp. nov. (Massarinaceae) from submerged wood in north-western Yunnan Province, China

A common Bistorta was misidentified as a novel species in Fagopyrum (Polygonaceae): the confirmation of the taxonomic identify of F. hailuogouense by morphological and molecular evidences

Reinstatement of Sapium sceleratum (Euphorbiaceae), an endemic species from Northeast Brazil, and new circumscription of Sapium argutum

Cymbella liyangensis sp. nov., a new cymbelloid species (Bacillariophyceae) from streams in North Tianmu Mountain, Jiangsu province, China

Lanmaoa rubriceps, a new bolete from tropical China

Mawenzhangia thamnobryoides (Bryophyta, Lembophyllaceae), a new moss genus and species from the Shangri-la region of Yunnan Province, China