B. Papp szerk.: Studia Botanica Hungarica 30-31. 1999-2000 (Budapest, 2000)
Papp, Beáta, Ódor, Péter; Erzberger, Peter: Preliminary data about the present Hungarian local populations of rare European bryophytes
13.04.1998, leg. and det. Erzberger, P. Total area covered is about 100 cm 2 . Earlier data: 13.05.1928, leg. and det. Boros, Á. - Pest county, Pilis Mts, Pilisszentkereszt, south of Két-bükkfa-nyereg, surroundings of the cave Ördög-lyuk barlang, limestone boulders in mixed beech forest, ca 480 m a. s. I., 14.03.1997, leg. and det. Erzberger, P. Total area covered is about 400 cm 2 . Earlier data: 02.06.1946, leg. and det. Boros, Á., Vajda, L. New occurrence: Borsod-Abaúj-Zemplén county, Bükk Mts, Cserépfalu, in Hór-valley at Ódorvár hill, ca 320 m a. s. 1., 04.08.1998, leg. and det. Erzberger, P. and 21.08.1999, leg. and det. Ódor, P., Papp, B., Erzberger, P. A shady place on the eastern slope of the Odorvár hill, in some limestone rock crevices. The total area covered was about 200 cm 2 . Brachydontium trichodes (Web.) Milde is a subatlantic, montane species. It occurs on shaded, non-calcareous rocks. Rare according to the RDB. In Hungary, it has only 3 known localities, all are in the Börzsöny Mts. Old occurrence confirmed: Pest county, Börzsöny Mts, Kemence, Kopolya-kövek rocks (Sasfészek in Boros 1915-1971) at Királyháza, on andesitic rocks, ca 600 m a. s. 1., 04.08. 1999, leg. and det. Papp, B., Erzberger, P. Earlier data: 01.05.1958 and 28.09.1959, leg. and det. Boros, Á., Vajda, L. A few small patches of ca 10 cm diameter were found on the eastern side at the middle part of the rock mass in shady places and at the northeastern end on the top of the ridge in a very exposed, sunny outcrop. It was associated with Racomitrium heterostichum (Hedw.) Brid. and R. aquaticum (Schrad.) Brid. These species are also rare in Hungary. Buxbaumia viridis (Moug. ex Lam. et DC.) Brid. ex Moug. et Nestl. is a boreal, montane species. It lives on decaying wood or sometimes on humus-rich, acidic soil in forests. It is included in the Bern Convention and in the Habitat Directives; it is vulnerable according to the RDB. It has 7 known localities in Hungary (Fig. 2). Old occurrence confirmed: Borsod-Abaúj-Zemplén county, Bükk Mts, Nagyvisnyó, in valley Leány-völgy at Holló-kő rocks, on decaying beech log, 720 m a.s.L, 01.10.1999, leg. and det. Ódor, P., Papp, B., Szurdoki, E. The population found in valley Leány-völgy is very small. In total 14 sporophytes were counted on three logs in a very advanced stage of decay. It was associated with Riccardia palmata (Hedw.) Carruth., Rhizomnium punclatum (Hedw.) Kop., Lophocolea heterophylla (Schrad.) Dum., Brachythecium velutinum (Hedw.) B., S. et G. Earlier data from here: 07.08.1953, leg. and det. Boros, Á. Localities checked without success: Baranya county, Mecsek Mts, in valley Eger-völgy at Magyarürög (Pécs), 27.06.1952, leg. and det. Vajda, L. The specimen was collected growing on soil mixed with Leucobryum glaucum (Hedw.) Aongstr. The valley was visited twice in 1999, in spring and in summer. The forests in the valley are very dry. The habitat seems not to be adequate for the species. - Borsod-Abaúj-Zemplén county, Zemplén Mts, Nagy-Hemzső hill at Telkibánya 19.06.1960, leg. and det.Vajda, L. The specimen was collected growing on soil in an oak forest. It was accompanied by Dicranum scoparium Hedw. The hill was visited in June 2000. The weather had been very dry and hot for a long time, but the habitat seems to be suitable for the species. - Heves county, Mátra Mts, Hársas-tető hill, growing on soil above the valley of Köszörű-patak at Párád 01.10.1956, leg. and det. Boros, Á. The site was visited in June 2000. The old habitat is very small, but about 100 m away there are extended similar
