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

Localities checked without success: Borsod-Abaúj-Zemplén county, Zemplén Mts, Kopaszhegy hill at Tállya. 27.05.1952, leg. and det. Vajda, L. - Komárom-Esztergom county, Gerecse Mts, Sárási-kő hill at Bajna. 04.04.1949, leg. and det. Boros, Á. Both localities were visited in 2000. Mining activity was observed at the sites. Large parts of the hill-sides are missing. The species is probably extinct in both places, its habitats are destroyed. - Borsod-Abaúj-Zemplén county, Zemplén Mts, in Vajda-völgy valley at Pálháza. 06.10.1953, leg. and det. Boros, A. Borsod-Abaúj-Zemplén county, Zemplén Mts, Nagy-Milic hill at Füzér. 03.10.1953, leg. and det. Boros, Á., Vajda, L. Both sites were temporary habitats for Pyramidula; the species occurred on the bank of a ditch at a roadside, and at a forest edge. The localities were visited in 2000. - Pest county, Budai-hegység Mts, Vihar-hegy hill at Budapest. 24.02.1921, leg. and det. Győrffy, I. The locality was checked in spring 1999 and 2000. The species was not found but the habitat is adequate for it. Although the grasslands are not very extended on the hill, there are some steep slopes with open soil surface, which is the typical habitat of the species in other localities. Unchecked locality: Heves county, Mátra Mts, Remete-bérc hill at Mátraháza. 31.10.1960. and 27.04.1961, leg. and det. Boros, Á. Rhynchostegiella jacquinii (Garov.) Limpr. is an atlantic, sub-Mediterranean, montane species. It is mentioned in the RDB as a rare species. One third of the old data of this species represent localities from the Visegrád Mts. Here, two new localities were discovered and in one old locality the search for the species was successful. Old occurrence confirmed: Komárom-Esztergom county, Dömös, Rám-szakadék, on andesitic rock walls in the gorge, 380 m a. s. 1., 22.03.1997, leg. and det. Papp, B. It was mainly near the water in association with Fissidenspusillus (Wils.) Milde. Earlier data from here: 07.08.1949, leg. and det. Boros, Á., Vajda, L. New occurrences: Pest county, Visegrád Mts, Apátkúti-völgy at Pilisszentlászló, on andesitic rocks in the stream, 320 m a. s. 1., 07.06.1992, and 20.06.1993, leg. and det. Papp, B. and 08.02.1994, leg. and det. Erzberger, P. - Pest county, Visegrád Mis, Apátkúti-völgy at Visegrád, on andesitic rocks in the stream at spring Magda-forrás, 160 m a. s. L, 20.06.1993, leg. and det. Papp, B. Along the Apátkúti-stream it lives on the rocks of the stream near the water, 5-10 cm from the water surface in association with Fissidens pusillus (Wils.) Milde. Rhynchostegium rotundifolium (Brid.) B., S. et G. is a sub-Mediterranean-subatlantic species. Rare according to the RDB. It lives on shaded, humid rocks, rock walls, rock crevices, sometimes on decaying logs. 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. 1., 01.10.1999, leg. and det. Ódor, P., Papp, B., Szurdoki, E. Patches of ca 5 cm

2 size occurred on three logs. Earlier data: 05.07.1934, leg. and det. Boros, Á. He has found it on calcareous rock. New occurrences: Pest county, Visegrád Mts, Apátkúti-patak, on andesitic rocks in the stream at spring Kaán-forrás at Visegrád, 280 m a. s. 1., 07.06.1992, leg. and det. Papp, B. It was mixed in a patch of Brachythecium populeum (Hedw.) B., S. et G. and Amblystegium serpens (Hedw.) B., S. et G. on a rock of 40-50 cm diameter about 20 cm from the surface of the water.