B. Papp szerk.: Studia Botanica Hungarica 38. 2007 (Budapest, 2007)

Papp, Beáta; Erzberger, Peter: Contributions to the bryophyte flora of Western Stara Planina Mts (E Serbia)

Paraleucobryum sauteri (Bruch et Schimp.) Loeske It is in the rare (R) category according to the Red data book of European bryophytes (ECCB 1995) known as a subcontinental, montane element (DULL 1984). We found it, as a first record in Serbia, under Babin Zub on a sandstone boulder in block scree under Fagus. In SE Europe it is reported from Bulgaria, but it has only a pre1956 literature record from the Vitosha Mts (NATCHEVA and GANEVA 2005) and it is known from almost all former Yugoslavian countries as Bosnia-Herzegovina, Montenegro, Croatia, Slovenia (DULL et al. 1999, MARTINCIC 2003). Pseudoleskea saviana (De Not.) Latzel It is in the regionally threatened (RT) category according to the Red data book of European bryophytes (ECCB 1995). A species of shaded volcanic rocks, it is sometimes found on tree bark mainly at the base of trunks. Regarded as a rare, continental-subalpine species, it can be found in the Alps and towards the east in Romania, Bulgaria, Greece and Turkey (DULL 1985). From Slovenia it is reported by MARTINCIC (2003). In the western Stara Planina Mts we collected it on the bark of Fagus at Zubska reka (stream) below the hotel of Babin Zub. Previously, it was also collected by us in the Kopaonik Mts (PAPP et al. 2004) and in the Golija-Studenica Biosphere Reserve (PAPP and ERZBERGER 2005). Two species of Schistidium (S. papillosum, S. pruinosum) are in the insufficiently known (K) category in the Red data book of European bryophytes (ECCB 1995). We found them on exposed sandstone rocks in subalpine grassland area. Their records from the western Stara Planina Mts are an important contribution to establish their range of distribution and conservation status. According to the preliminary national red list of bryophytes of Serbia and Montenegro (SABOVLJEVIC et al. 2004) this mountainous area is very rich in species of national conservation interest. Two hepatics (Bazzania tricrenata, Scapania aequiloba) and two mosses (Anomodon rugelii, Pohlia longicolla) are in the endangered (EN) category. 4 hepatics (Lophozia