Riccia beyrichiana (Hepaticae, Ricciaceae) w Polsce

Riccia beyrichiana (Hepaticae, Ricciaceae) in Poland. Fragmenta Floristica et Geobotanica Polonica 8: 267–271. Kraków. PL ISSN 1640 629X. ABSTRACT: The distribution in Poland of the rare and endangered liverwort species, Riccia beyrichiana Hampe, is reviewed. The species had previously been known from ten localities which are widely distributed but scattered in the western and central parts of the country. Some of these records date from the first half of the 20th century and the most recent was made in the early 1970s. A new locality for R. beyrichiana was found in 2000 in the vicinity of Tarnów in Płaskowyż Tarnowski in Kotlina Sandomierska in the southern part of Poland, making this the first record of the species in the country for over a quarter of a century. The distribution of the species in Poland is mapped.