The Natural History Museum holds major historical fern collections as well as important cytological voucher specimens and more recent collections.
Carl Christensen herbarium specimen of Blotiella glabra from Africa
Our collections are unique since we hold the herbaria of:
Christensen’s herbarium is not only particularly rich in types but also extremely important for fern taxonomy as the reference for Christensen’s Index Filicum.
Our fern collections also include many major 20th-century collections, especially those made by:
We hold those of: