A replacement name for the poorly known illegitimate Paleogene genus Psilamonocolpites Y.K.Mathur (Ginkgoales)
The type specimens in Eugen von Halácsy´s Herbarium Graecum
Biogeographical regionalisation of Colombia: a revised area taxonomy
Vascular plant biodiversity of Dorset and Mallik islands, Nunavut, Canada: an annotated checklist of a middle Arctic flora in the Canadian Arctic Archipelago