B. Papp szerk.: Studia Botanica Hungarica 39. 2008 (Budapest, 2008)
Erzberger, P.; Schröder, W.: The genus Schistidium (Grimmiaceae, Musci) in Hungary
Robustum group: S. dupretii (Thér.) W. A. Weber, S. robustum (Nees et Hornsch.) H. H. Blom; Confertum group: S. confertum (Funck) Bruch et Schimp., S. ßaccidum (De Not.) Ochyra; Atrofuscum group: S. brunnescens Limpr. subsp. brunnescens, S. brunnescens subsp. griseum (Nees et Hornsch.) H. H. Blom, S. crassipilum H. H. Blom, S. elegantulum H. H. Blom, S. belveticum (Schkuhr) Deguchi (= S. singarense (Schiffn.) Laz.). Historical aspects The oldest specimens of Scbistidium in the bryophyte collections of the Hungarian Natural History Museum (BP) date from the second half of the 19th century. Two are without date (S. apocarpum s. str.: "Magyarhon virányából Hazslinszky Frigyes, Grimmia apocarpa L. Agasvár Mátra 1. Borbás" BP 5758; S. crassipilum: "Grimmia apocarpa Kalkfelsen b. Tapolcza; ex herbario Frid. Hazslinskyi" BP 5699). The oldest specimens with a date are S. crassipilum from 1870 (BP 5667 Herbar. Musei Nat. Hungar. Budapest Specimen in herb. Simonkai L. inter Grimmia apocarpa insertum erat "In rupestribus montis 'Kis Eged' prope Agriam. Comitat. Heves in Hungária. 6. Apr. 1870 Vrabélyi"), and S. elegantulum from 1886 (BP 5624 "Ex herbario C. Schilberszky, Farkasvölgy, mészkő [18]86.V.2"). Among the older collections there are some by A. Degen from 1901 and L. Simonkai from 1904. Table 1 lists the collectors, the period of collection (of Scbistidium specimens), and the number of specimens (corrected for duplicates). In his bryophyte flora of the surroundings of Budapest and the Pilis Mts SZEPESFALVI ( 1941 ) treats Scbistidium under Grimmia and mentions 2 species: S. ßaccidum (as G.flaccida) and S. apocarpum s. 1. (as G. apocarpa) with three varieties: var. brunnescens, var. conferta, and var. gracilis. While his specimens of S.flaccidum and var. brunnescens could be confirmed in the present revision, the plants labelled var. conferta proved to be S. apocarpum s. str., S. brunnescens subsp. brunnescens, or S. cf. crassipilum, but not S. confertum. We did not see any specimens collected by Szepesfalvi labelled var.gracilis. In an earlier paper SZEPESFALVI (1935) stated that S. brunnescens was rare in the surroundings of Budapest and in Hungary, thus contradicting
