The checklist of Hungarian bryophytes – second update

According to the checklist presented here, the bryophyte flora of Hungary consists of 2 species in 2 genera and 2 families of hornworts, 146 species and 3 additional infraspecific taxa (1 subspecies and 2 varieties) in 60 genera and 34 families of liverworts, and 521 species and 17 additional infraspecific taxa (5 subspecies and 12 varieties) in 186 genera and 64 families of mosses, in total 669 species, 6 subspecies and 14 varieties or 689 taxa. During the last decade, 40 bryophyte taxa (6 liverworts and 34 mosses) were added to the Hungarian bryophyte flora (Appendix 1.1), and an additional 19 taxa (4 liverworts and 15 mosses) that were already part of the Hungarian flora but not recognised in the previous checklist, are now incorporated in the list (Appendix 1.2). On the other hand, 29 taxa (7 liverworts and 22 mosses) must be excluded according to our present state of knowledge (Appendix 2). Another 13 taxa (2 liverworts and 11 mosses) that are at present not considered members of the Hungarian bryoflora are annotated in Appendix 3. They were not recognised in the previous checklist (with one exception), but are reported from Hungary in some literature and with five exceptions are also recognised in the European checklist. In many cases we have insufficient information to definitely decide upon their status. Annotations to all taxa listed in the three appendices provide additional information. In Appendix 4 to all names of bryophyte taxa that appeared in the previous checklist (except excluded taxa) the presently accepted names are assigned.

Taxonomical and chorological notes 12 (126–136)

The present part of the series provides new records of 11 taxa, among them five lichen-forming fungi and six bryophytes. One lichen-forming fungus was discovered as new species in Hungary (Parmeliella triptophylla), however it was collected 115 years ago, this species should be considered as an extinct species in Hungary. One bryohyte is newly reported from Hungary (Brachytheciastrum olympicum). The occurrence of one lichen-forming fungus (Parmelia submontana) and two bryophyte species (Palustriella falcata, Ptychostomum pseudotriquetrum var. bimum) was confirmed in Hungary. Amendments to the known distribution of lichen-forming fungi species are reported from Hungary (Cladonia mitis) and Romania (Multiclavula mucida, Xanthoparmelia protomatrae) and three bryophytes from Hungary are also reported (Callicladium haldanianum, Codonoblepharon forsteri, Ephemerum cohaerens).

Taxonomical and chorological notes 13 (137)

The present part of the series provides a new record of one spreading alien species. Coronopus didymus reappeared in Hungary after a century, and can be interpreted as an already established species.

Diptera flower visitors of Adonis vernalis in the Bakony Mts (Hungary)

The number of pollinators has decreased significantly in the last decades, producing a situation that is frequently mentioned as a “pollination crisis”. In our study we document Diptera taxa collected on the early-flowering, legally protected Adonis vernalis L. According to our former observations, species of the Aculeata suborder (Hymenoptera) are the main pollinators of A. vernalis. Besides them many insects visit the flowers of Adonis, thus helping pollination directly or indirectly. Diptera taxa were collected in the spring of 2019 from three sites of the Bakonyvidék Mesoregion in Hungary. At Szentkirályszabadja and Veszprém-Kádárta villages the species Sphaerophoria scripta (19 and 10 individuals, respectively), on the Csatár Hill Chrysotoxum vernale and Pipizella viduata (3–3 individuals) were found the most frequent visitors. At each study site most of the collected insects were members of the Syrphidae family. Of the collected Diptera species only 2 species belonged to the Nematocera suborder, all the others belonged to the Brachycera suborder. At Veszprém-Kádárta we also found three Tephritidae larvae in the flowers.

Taxonomical and chorological notes 11 (112–125)

The present part of the series provides new records of 14 taxa of which 8 are native and 6 introduced in Europe. Three vascular plants are newly reported from Kosovo (Corrigiola litoralis, Dysphania pumilio, Equisetum pratense) and one (Chamaecytisus purpureus) from Northern Macedonia. The occurrence of one species (Corydalis pumila) is confirmed in Northern Macedonia. Amendments to the known distribution of vascular plants are reported from Albania (Ambrosia artemisiifolia, Gratiola officinalis, Onosma heterophylla, Paspalum dilatatum), Hungary (Euphorbia lathyris), Lithuania (Ophioglossum vulgatum), and Slovakia (Duchesnea indica, Panicum dichotomiflorum, Pilosella cymosa).

In memoriam József Németh (1940-2020)

József Artúr Németh, a well-known algologist and hydrobiologist, an expert of euglenoids, the author of the Hungarian red list of algae, and also a remarkable artist, died at the close of a busy working day on 25 April 2020, at the age of 80.

Plagiothecium platyphyllum (Bryophyta), a rare species in Hungary

All specimens deposited under the name Plagiothecium platyphyllum Moenk. in the bryophyte herbarium of the Hungarian Natural History Museum in Budapest (BP) were revised, along with some recent collections of the authors. As a result of this revision a majority of the specimens was found to belong to other species, and only ca 10% could be confirmed as P. platyphyllum, originating from eight locations, with recent collections from two sites only. The amended distribution of the species is mapped according to the Central European Mapping Scheme, and the corresponding specimens are cited in detail. The habitat of the Hungarian occurrences is characterised and compared to the literature. The morphological features of P. platyphyllum are described and illustrated by photographs, and the characters distinguishing this species from related taxa are discussed. We include an analytical key for the Hungarian species of the genus Plagiothecium.