Erstfund des circum-tethyschen Lebermooses Riccia gougetiana (Ricciales, Hepaticae) für Deutschland
[First find of circum-tethyan Riccia gougetiana (Ricciales, Hepaticae) in Germany]
Specimens of the liverwort genus Riccia from the Kyffhäuser and Halle district in Germany were identified as the circum-tethyan Riccia gougetiana. Riccia gougetiana is compared with the morphologically similar Riccia ciliifera. Biometric analysis of the thallus and the spores of both species are presented. Thus, this is the first find of Riccia gougetiana in Germany.