Correction of the typification of Dicranum longifolium Hedw. (≡ Paraleucobryum longifolium (Hedw.) Loeske), Dicranaceae

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The Conservatoire et Jardin botaniques de la Ville de Geneve (CJBG) provided the facilities for this work. The librarians of the CJBG are gratefully acknowledged for providing access to the necessary literature. I thank the curators of GOET (Dr Jochen Heinrichs), UPS (Dr Svengunnar Ryman), LD (Dr Arne Thell), and B (Dr Harrie Sipman) for looking for the Ehrhart material in their respective herbaria and Len Ellis (BM) for loan of the Dickson material and for providing information on the Dickson collections. I thank Eva Maier for her help in translating the communications of Schwägrichen from the German texts. I thank Eva Maier, Len Ellis and an anonymous reviewer for their comments on an earlier version of this article.

Taxonomic Additions and Changes: Nil.