Chartres, France
Chartres, France

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In a Sphagnum-rich wet heath of Sologne (France), the indicator value of Cephalozia macrostachya and the closely related C. connivens is investigated by mean of systematic recording in 25 x 25 m grid cells. The distribution of the two species at the local scale, the affinity for vascular phytocenosis and microcenosis appeared distinct. Correspondence analysis and agglomerative hierarchical clustering performed allowed the grouping of grid cells sharing a significantly similar bryoflora and the grouping of taxa sharing a significantly similar affinity for different kinds of substrates. Cephalozia macrostachya is part of a highly demanding suite of species from the structural, hydrological and dynamical perspectives. Cephalozia macrostachya is a relevant tool that may be used in a conservation perspective.


Cephaloziella uncinata R.M. Schust. (Cephaloziellaceae, Marchantiophyta) has been observed in a peaty forest of a former loop of the Seine River (Seine-Maritime, HauteNormandie). The criteria for a correct identification of this leafy liverwort, which is new to France, are discussed and compared synthetically to those of some close taxa. The ecology of its habitat and its worldwide distribution are given. The conservation issues of the species are discussed © 2014 Adac. Tous droits réservés.


Sarmentypnum tundrae (Arnell) Hedenäs is reported new to France (Hautes-Alpes) and in the Alps. Its ecological requirements and the new locality are briefly described. The distribution of the species is discussed. © 2014 Adac. Tous droits réservés.


Bardat J.,CNRS Systematics, Biodiversity and Evolution Institute | Boudier P.,Museum de Chartres | Gauthier R.,avenue LeBlanc
Cryptogamie, Bryologie | Year: 2013

Tetrodontium ovatum (Funck) Schwägr. is recorded as new for the French bryoflora, based on a sample collected in the region of Haute-Savoie. Data on its autoecological features are provided. Additionally, its diagnostic characters are discussed and an identification key to Tetrodontium species in France is proposed. © 2013 Adac. Tous droits réservés.

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