M. E. López de Silanes*, G. Paz-Bermúdez*, R. Carballal** & J. Marques*/***

*Dpto. E.R.N.M.A., E. Forestal, Universidade de Vigo, A Xunqueira s/n,
36005 Pontevedra, Spain
**Dpto. Botánica, Facultade de Bioloxía, Universidade Santiago de Compostela,
Campus Sur, 15701 Santiago de Compostela, Spain
***Cibio, Centro de Investigação em Biodiversidade e Recursos Genéticos, Campus Agrario de Vairão, 4485-661 Vairão & Departamento de Biologia, Faculdade de Ciências,
Universidade do Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal

López de Silanes M. E., Paz-Bermúdez G., Carballal R. & Marques J. (2012) The genus Leptogium (Collemataceae, Ascomycotina) in mainland Portugal. – Sydowia 64 (1): 67–102.

A revision of the genus Leptogium occurring in mainland Portugal is presented based on collections of 24 out of the 25 species previously reported for the Portuguese territory. Inclusion of L. resupinans is based exclusively on recent literature reporting this species from southern Portugal. Anatomical, ecological and geographical data on these species is provided, as well as an identification key. Leptogium plicatile is here recorded for the first time in Portugal. Leptogium aragonii, L. cochleatum, L. coralloideum, L. cyanescens, L. furfuraceum, L. pulvinatum and L. schraderi constitute new records for some Portuguese provinces. The presence of the following species previously reported from Portugal is considered doubtful: L. azureum, L. caesium, L. chloromelum, L. hildenbrandii, L. intermedium and L. microphylloides.
Keywords: lichenized fungi, taxonomy, key, Iberian Peninsula, Europe.