New national and regional bryophyte records, 48

Andreaea rothii has been recorded for the first time in Croatia. It is a boreo-temperate suboceanic species (Hill et al., 2007) relatively rare in SE Europe, since it is known only from Romania (Ellis et al., 2014d), Slovenia and Serbia (Sabovljevic´ et al., 2008 ; Hodgetts, 2015). The species was found in the Papuk Mountains, situated in the mainly lowland area of NE Croatia. In this region Papuk is the largest and highest mountain range, with peaks between 800 and 900 m a.s.l. They are characterized by high geological diversity dominated by metamorphic rocks, such as different types of schists, as well as granites. The climate is temperate, moderately warm without an explicit dry period. About 60% of the almost totally forested area is covered by different communities of beech forests. The well-developed black patches of A. rothii cover an area ca 2 m× 0.5 m on a steep north-facing cliff on the edge of an acidothermophilic sessile oak (Quercus petraea agg.) forest. The specimens of A. rothii grew on the bare rock with the following bryophyte species: Cynodontium polycarpon (Hedw.) Schimp., Dicranella heteromalla (Hedw.) Schimp., Dicranum scoparium Hedw., Polytrichum piliferum Schreb. ex Hedw. and Rhabdoweisia (cf.) fugax (Hedw.) Bruch & Schimp. The population is very small with an extremely high risk of extinction, therefore we propose CR as Red List status for the taxon in Croatia. According to the last checklist of the moss flora of Croatia (Sabovljevic´, 2006), only Andreaea rupestris Hedw., collected from just one locality in 1927 (Horvat, 1932 and ZA), was reported for the genus. The locality is very interesting from the point of view of the vegetation of Croatia, because it is within 100 m of the second stand of Fagus sylvatica L.-Sphagnum quinquefarium (Braithw.) Warnst. forest (Alegro et al., 2015). The second occurrence of Dicranum spurium Hedw. (Ellis et al., 2014d) and Rhabdoweisia fugax (Papp et al., 2013) in Croatia are also found here. Another interesting moss is S. capillifolium (Ehrh.) Hedw., that forms small red patches within the thick carpets of S. quinquefarium under the open oulder scree forest in the neighbourhood.