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

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

Lamina without papillae, smooth, predominantly unistratose, but often with bistratose patches or striae in upper half. Lamina cells from slightly to strongly sinuose, in upper part 8-10 urn wide. K+ red. Sporophytes common, deeply immersed. Urn dark red, widest at mouth, length/width ratio (1.2-)1.3-1.6(-2.0) (BLOM 1996), in Hungarian material (1.0-) 1.51 ±0.06(-2.0), n = 65. Exothecial cells predominantly isodiametric and short transversely rectangular, but often with patches of elongate and rectangular cells. Stomata (4-)8-12(18) per urn. Peristome teeth (350-)400-710 urn, red, patent to spreading with ascending tips, longly tapering to a fine point, in lower part ± semi-perforated, in central and upper parts from almost entire to strongly perforated with small oval cracks in submarginal rows. Normally easily identified by the combination of denticulate leaf tips and isodiametric exothecial cells, but longipilose forms occur with smooth leaf margin and costa. Habitat: On often shaded or moist, but sometimes also exposed or dry siliceous (andésite, porphyric rock, aleurolitic slate, sandstone, basalt) or more rarely calcareous rocks, often near streams or springs, but also on walls, even on loess. Associated bryophytes: Ampbidium mougeotii, Brachythecium populeum, Ceratodonpurpureus, Didymodon rigidulus, D. sinuosus, D. vinealis, Grimmia hartmanii, Hedwigia ciliata var. ciliata, Hypnum cupressiforme, Lejeunea cavifolia, Orthotrichum urnigerum, Orthotrichum sp., Scbistidium crassipilum, S. dupretii, S. elegantulum, S. lancifolium, S.pruinosum, Taxipbyllum densifolium, Tortella tortuosa, Tortula ruralis. Vertical distribution: 83-900 m a.s.l. Selected specimens examined: Zemplén Mts: 7594/1 Comit. Abaúj-Torna. In rupibus irrigatis rivi Osva-patak (pars superior) prope pag. Telkibánya, montes Sátor-hegység, 17.09.1959, leg. L. Vajda, BP 63350; Fig. 4. Distribution of Scbistidium apocarpum