The genus Luticola D.G.Mann (Bacillariophyta) from the McMurdo Sound Region, Antarctica, with the description of four new species

Taxonomic reexamination of Portulaca boninensis (Portulacaceae) in the Bonin (Ogasawara) Islands of Japan using molecular and morphological data

Phylogenetic relationships of Petunia patagonica (Solanaceae) revealed by molecular and biogeographical evidence

Phylogenetic position and taxonomy of the enigmatic Orobanche krylowii (Orobanchaceae), a predominatly Asian species newly found in Albania (SE Europe)

Leprose and leproid lichens of the Galapagos, with a particular focus on Lepraria (Stereocaulaceae) and Septotrapelia (Pilocarpaceae)

The diatom genus Gomphoneis Cleve (Bacillariophyceae) from Lake Baikal, Russia

Friesodielsia sahyadrica (Annonaceae), a peculiar new species from the Western Ghats, India

Rubus gayeri and Rubus slavonicus, two new species of Rubus ser. Micantes (Rosaceae) from Central and South-Eastern Europe

Unravelling the complexity of Mexican biogeographical patterns by naturalists in the 19th century: From Alexander von Humboldt (1769—1859) to Francis Sumichrast (1829—1882)