B. Papp szerk.: Studia Botanica Hungarica 36. 2005 (Budapest, 2005)

Erzberger, Peter: The bulbilliferous species of Pohlia (Bryaceae, Musci) in Hungary

erroeous according to the present taxonomy, as can already be seen by the synonymy given by these authors (P. grandiflora, P. proligera, P. annotina). However, a single specimen labelled P. bulbifera was revised to P. camptotrachela. This represents the first true report of this species in Hungary. Although P. proligera is mentioned by ORBÁN and VAJDA (1983) - as an erroneous synonym of P. camptotrachela - no specimen labelled P. proligera was found during the present revision. The first true data on this species from Hungary were found in two specimens labelled Mniobryum albicans (Wahlb.) Limpr. (accepted name: Pohlia wahlenbergii (F. Weber et D. Möhr) A. L. Andrews) annotated by G. Nordhorn-Richter, Duisburg, during revision in 1981. Four more specimens of P. proligera were found in the present study, under labels meaning P. annotina. On the basis of the revised material, three species reported earlier have to be excluded from the Hungarian bryoflora: P. bulbifera, P. drummondii and P.filum. All specimens labelled P. bulbifera proved to be either P. andalusica, P. annotina or P. camptotrachela. P. drummondii is not mentioned by BOROS (1968); ORBÁN and VAJDA (1983) report this species, but their data probably refer to P. annotina, since this name is (erroneously) quoted as synonym. No specimen labelled P. drummondii nor any Hungarian collections representing this taxon were found in the present study. P. filum was earlier treated under the synonym P. gracilis (in ORBÁN and VAJDA (1983) as a variety of P. drummondii), but all specimens labelled P. gracilis proved to be P. andalusica. From the results of the revision, P. andalusica seems to be the most frequent species in Hungary, followed by P. annotina and P. proligera, while P. camptotrachela appears to be rare, since only one collection of that species could be found. Their distributional area seems to be restricted to regions with siliceous bedrock, as in the mountain ranges of northeastern Hungary, the Zemplén, Mátra and Börzsöny Mts, thus indicating a need for a low pH of the substrate. This ecological requirement is also fulfilled in the regions of western Hungary like Őrség, Vendvidék, and Kőszeg Mts, where acidic soils dominate on gravelly deposits. The site at Kabhegy in Bakony Mts seems exceptional at first sight, since this region has dolomite as bedrock; but the bryophytes might have grown on an argillose soil layer isolating them from the underlying rock. The specimen labels often note humid forest roads as collection sites; turf on forest edges, edges of hollow roads, margins of swamps and ditches are also mentioned, sometimes on a loamy-sandy soil. The growth sites of these species are clearly not permanently available, since open soil usually is overgrown by higher plants after some time. This may account for the relatively small number of collections. In the opinion of the author, the bulbilliferous Pohlia species are under-collected in Hungary, and more attention should be paid to places where they could possibly occur.