Cryptogamie, Bryologie, 2007, 28 (2): 109-143 © 2007 Adac. Tous droits réservés Hygrohypnum (Amblystegiaceae, Bryopsida) in the Iberian Peninsula Gisela OLIVÁN a*, Esther FUERTES b and Margarita ACÓN c a Departamento de Biología Vegetal I, Facultad de Biología, Universidad Complutense de Madrid, E-28040 Madrid, Spain (
[email protected]) b Departamento de Biología Vegetal I, Facultad de Biología, Universidad Complutense de Madrid, E-28040 Madrid, Spain (
[email protected]) c Departamento de Biología (Botánica), Facultad de Ciencias, Universidad Autónoma de Madrid, E-28049 Madrid, Spain (
[email protected]) Abstract – The genus Hygrohypnum Lindb. is studied for the Iberian Peninsula, based mainly on herbarium specimens kept in BM, PC, S and the main Iberian herbaria. Eight species of Hygrohypnum occur in the Iberian Peninsula: Hygrohypnum cochlearifolium , H. duriusculum , H. eugyrium , H. luridum , H. molle, H. ochraceum , H. smithii and H. styria- cum . Of these, H. eugyrium and H. cochlearifolium are considered to be extinct in the Iberian Peninsula. Hygrohypnum alpestre and H. polare are definitively excluded from the Iberian bryophyte flora, since its occurrence at present or in the past could not be confirmed. Only the occurrence of Hygrohypnum ochraceum has been confirmed for Portugal. Keys, descriptions, illustrations, SEM photographs and distribution maps of the species of Hygrohypnum in the Iberian Peninsula are provided. Hygrohypnum /Amblystegiaceae / Iberian Peninsula / flora / taxonomy / distribution INTRODUCTION Taxonomic history of Hygrohypnum The generic name Hygrohypnum was introduced by Lindberg (1872) to replace the illegitimate name Limnobium used by Schimper (1853), who was the first to treat the genus as separate from the broadly conceived Hypnum Hedw.