Cover: Pioneer communities in oligodystrophic peat moss in Charcas de la Rubia and Pistola. Sierra de Guadarrama National Park (Madrid, Spain); 2190 m asl. Photo by P. Cantó.

Cover image: Lagunillas peatland, 1969 m asl, fall view. Typical flat and oligotrophic peat bog on shallow peaty deposits with water flowing on the surface. Vegetation corresponds to the Caricetum echinato-nigrae association, the most widespread community in Gredos Regional Park. Photo by J.A. López Sáez.

Cover image: Female of Costaconvexa centrostrigaria (Geometridae) pollinating Gennaria diphylla. Photo by Jean Claessens et al. 

Cover image: Sempervivum vicentei, species of high mountain pastures in Morro Negro peak, Natural Park of Babia and Luna (León) at 2,171 masl, 25 of July 2019. Photo by Borja Jiménez-Alfaro

Cover image: Greece, Lake Pamvotis, next to Ioannina city, as seen from Mt Mitsikeli (around 1300 m asl).  Photo by Anastasia Christopoulou.

Cover image: Ephemeral hygrophilous vegetation in temporary ponds of Apulia (southern Italy). Solenopsis laurentia subsp. caespitosa is a exclusive species of these habitats. Photo by Pietro Minissale.

Silene migjornensis: flowers (top left and bottom right); scanning-electron micrographs (SEM) of seed (top right) and seed coat detail dorsal view (bottom left). Field photographs by E. Guasp ( Mallorca) and SEM by L. Sáez.

(Published online: 29 June 2018)

(Published online: 22 March 2018)