THE GENUS SCHISTIDIUM (GRIMMIACEAE, MUSCI) IN HUNGARY ...

THE GENUS SCHISTIDIUM IN HUNGARY 31
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. flaccidum
(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. helveticum (Schkuhr) Deguchi (= S. singarense
(Schiffn.) Laz.).
Historical aspects
The oldest specimens of Schistidium 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. Ágasvár Mátra l.
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 Hungaria.
6. Apr. 1870 Vrabélyi”), and S. elegantulum from 1886 (BP 5624 “Ex
herbario C. Schilberszky, Farkasvölgy, mészkõ [18]86.V.2”). Among the
older collections there are some by Á. Degen from 1901 and L. Simonkai
from 1904. Table 1 lists the collectors, the period of collection (of Schistidium
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 Schistidium under Grimmia and mentions 2 species:
S. flaccidum (as G. flaccida) and S. apocarpum s. l. (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, orS. 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
Studia bot. hung. 39, 2008