Background
He was born in Enschede, the Netherlands, received his undergraduate and master"s degrees from Utrecht University, and earned his Doctor of Philosophy from the University of Turku, Finland in 2007.
He was born in Enschede, the Netherlands, received his undergraduate and master"s degrees from Utrecht University, and earned his Doctor of Philosophy from the University of Turku, Finland in 2007.
Utrecht University.
He is an authority on fern and gymnosperm classification and is the current elected president of the International Association of Pteridologists. He lives in Kingston-upon-Thames, Surrey, United Kingdom. He is the former chief editor and initiator of the botanical journal Phytotaxa and an associate editor for manuscripts on pteridophytes for the Botanical Journal of the Linnean Society. He has an interest in island biogeography, floristic treatments and plant taxonomy.
Several vascular plant families (Petenaeaceae, Hemidictyaceae, Diplaziopsidaceae), genera (Dracoglossum, Nesolindsaea, Osmolindsaea) and species (Hymenophyllum filmenofilicum, Danaea antillensis, Doctorate arbuscula, Doctorate cartilaginea, Doctorate chococola, Doctorate danaëpinna, Doctorate draco, Doctorate epiphytica, Danaea kalevala, Doctorate leussinkiana, Doctorate lingua-cervina, Doctorate quebradensis, Doctorate riparia, Doctorate trinitatensis, Doctorate ushana, Doctorate vivax, Doctorate xenium, Doctorate ypori, Doctorate zamiopsis, Piper ciliomarginatum, Tetranema michaelfayanum), were named by him or together with colleagues.
Recently a species of Moraceae from Kenya, Dorstenia christenhuszii was named for its discoverer.
