Some remarkable bryophytes of the Causse Méjean (Lozère, France)

The discovery of several species known to be rare or very rare in France made it possible to clarify their distribution and ecological affinities at the national level, as well as on the regional scale of the Massif Central. Eight species are concerned : Encalypta longicollis Bruch, Hypnum sauteri Schimp., Orthotrichum hispanicum F. Lara, Garilleti & Mazimpaka, Orthotrichum scanicum Grönv., Orthotrichum shawii Wilson ex Schimp., Orthotrichum stellatum Brid., Seligeria donniana (Sm.) Müll.Hal. and Seligeria recurvata (Hedw.) Bruch., Schimp & W. Gümbel, which were recorded for the first or the second time only on mainland France or in the Massif Central.