B. Papp szerk.: Studia Botanica Hungarica 39. 2008 (Budapest, 2008)

Erzberger, P.; Schröder, W.: The genus Schistidium (Grimmiaceae, Musci) in Hungary

prope Kesztölc, 450 m, 14.04.1946, leg. Á. Boros, BP 111736; Buda Mts: 8479/3 Com. Pest. In rupibus calcareis montis Telkihegy prope pag. Telki, 22.03.1948, leg. L. Vajda, BP 58480; Gerecse Mts: 8277/3 Comit. Esztergom. In rupibus calcareis montis Öregkő prope Bajót, 300-375 m, 05.04.1936, leg. Á. Boros, BP 110846; Vértes Mts: 8675/2 Csákberény, Ugró-völgy, auf w-exponierten, besonnten niedrigen Dolomitfelsen, 29.04.2001, leg. P. Erzberger, herb. Erzberger, (B) 7081; Mecsek Mts: 9875/3 Comit. Baranya. In rupibus calcar. merid. montis Tubes prope Pécs, 600 m, 26.04.1962, leg. Á. Boros, BP 111398; Villány Mts: 0175/2 Comit. Baranya. In rupestribus calcar. montis Tenkes-hegy prope Máriagyüd, 300-400 m, 17.04.1942, leg. Á. Boros, BP 111384. Scbistidium lancifolium (Kindb.) H. H. Blom (Figs 23, 24) Plants small to medium-sized, forming lax tufts. Central strand absent or indistinct. Hair-point short or absent, 0-0.3 mm, decurrent, sharply and strongly spinulose-denticulate. Costa distantly papillose in upper (l/2-)2/3-4/5 of the leaf length with papillae increasing in height towards the leaf apex (about 8 urn wide and 9-11 ujn high in apical part). Margins irregular dentate in upper part with teeth pointing in various directions. Lamina unistratose, smooth or rarely with few papillae on the abaxial side near apex. Lamina cells sinuose, 7-10 urn wide in upper part, (8-)9-10 wide in lower parts of leaf. K+ red. Sporophytes usually present, mostly shallowly immersed and much exposed in lateral view. Urn dark red to reddish-brown, small, 0.7-0.85-1 mm long, length / width ratio 1.3-1.5-1.7 (BLOM 1996), in Hungarian material (0.9-)1.3 ±0.08(-1.6), n = 33. Exothecial cells thin-walled, short transversely rectangular and isodiametric, square, arranged in regular perpendicular rows (Figs IF, G, 23G-I). Stomata large, 6-10 per urn. Peristome teeth 320-400 urn, orange, semi-perforated in lower part, from almost entire to strongly perforated in upper part. Usually an easily known plant with a unique combination of apically papillose costa and margins, with the size of papillae increasing towards the apex (Fig. 23B, C) and small capsules exhibiting a characteristic pattern of exothecial cells. In moist shaded habitats, costal papillae may be confined to the apical part of the leaf. S. apocarpum differs from S. lancifolium by its larger size in nearly all aspects (leaf length, width, urn length, width, peristome teeth length - compare Figs 4 and 23), but there is a small overlap in these quantitative characters. In Hungary, S. lancifolium is a typical plant of shaded andésite rocks, with a preference for higher altitudes. In Scandinavia, this species is an early pioneer on dry acidic to slightly basic (typically greenstone, but very occasionally also limestone) cliffs and boulders in relatively dense and moist forests (WEIBULL 2006). Habitat: On shaded siliceous (andésite, porphyric rock, slate, sandstone) or more rarely calcareous rock (dolomite), often near streams or flushes and in ravines, in forests, preferably, but not exclusively at higher altitude (700-900 m).