Medlinella amphoroidea gen. et sp. nov. (Bacillariophyta) from the neck skin of Loggerhead sea turtles (Caretta caretta)

Koenigia hedbergii (Polygonaceae: Persicarieae), a distinct new species from Shennongjia National Nature Reserve, Central China

Two new species of Tripogon (Poaceae: Chloridoideae: Tripogoninae): from India

Oricymba xianjuensis sp. nov., a new freshwater diatom (Bacillariophyceae) from Xianju National Park (Zhejiang Province, China)

Two New Species of Isoetes (Isoetaceae) from northern Brazil

Valerianella turcica (Caprifoliaceae), a new species from Turkey

Genetic relationships among some Turkish Petrorhagia (Ser.) Link (Caryophyllaceae) taxa using ISSR markers