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• The clammy goosefoot (Chenopodium pumilio R.BR.) in Zugló (Budapest) and new data on the distribution of invasive species in NE Hungary

  221-226

  Csaba Molnár

  Melinda Juhász

  Views:

  314

  The paper summarise occurrences of some rare invasive weeds of Hungary. We found currently second population at the Australian origin Chenopodium pumilio in Budapest (Zugló) in September 2016. Further, 27 occurrence data of 8 other species (Amaranthus deflexus, Echium maculatum, Lepidium densiflorum, Oxybaphus nyctagineus, Panicum dichotomiflorum, Portulaca grandiflora, Sarothamnus scoparius, Tragus racemosus) is also reported in the persent paper from the ‘Északi-középhegyég’ area (Northeast-Hungary), and some data from beside the Hungarian–Slovakian border, especially settlements, strongly disturbed places (especially road curbs, pavement cracks, train stations), indicating the Central European flora mapping system quadrate number. Voucher specimens were deposited in herbarium of Hungarian Natural History Museum, Budapest (BP).

• Chorological notes on the vascular flora of Hungary

  85-119

  Csaba Molnár

  László Somay

  László Demeter

  Views:

  484

  The paper presents 1593 current chorological data of 584 taxa (species, subspe­cies, varietas, hybrids) from Hungary, collected during the last few years. All of these connec­ted also to a total of 184 CEU quadrats. Among the species characteristic to the natural habi­tats, we high­lighted the records of several species protected in Hungary (Adoxa moschatelina, Althaea canna­bina, Cardamine parviflora, Centaurium pulchellum, Gagea pusilla, Orobanche reticulata, Potentilla patula, Rosa zagrabiensis, Spergula pentandra, Trifolium diffusum, Vale­rianella dentata, V. rimosa, Veronica officinalis, Viola collina and V. pumila). In the Northern part of Hungary, we observed the establishment of Cerastium dubium and Ranunculus peda­tus at several places along road­sides, which species have been known from the surrounding saline areas for a long time, but their appearance at roadsides is relatively new phenomenon. In addition, Aegilops cylindrica, Crypsis schoenoides, and Fumaria vaillantii subsp. vaillantii were found in one location – each species on roadsides. Along the railway tracks, we found disturbance-tolerant pioneers of rocky grasslands, open sandy and loess grasslands, e.g. many population of the native Androsace elon­gata, Anthemis ruthenica, Centaurea arenaria, Draba nemorosa, Erodium ciconium, Medicago monspeliaca, Microrrhinum minus, Saxifraga tridactylites and Vulpia myuros were found, as well as numerous ruderalia and the archae­ophyt such as Aegilops cylindrica. In addition to the more common species from the urban flora, we present some new data on the occurrence of the rarer Amaranthus blitum subsp. emarginatus, Chenopodium glaucum, Ch. murale, Ch. opulifolium, Ch. vulvaria and Euphorbia peplus. We have also listed some of the rarer field weeds and species that can establish in younger and older old-fields. Bromus secalinus has been found in several places in the north­eastern part of Hungary. We also observed Calepina irregularis, Centaurea solstitialis, Centau­rium pulchellum, Erysimum cheiranthoides, Filago lutescens, Fumaria officinalis subsp. of­ficinalis, Geranium dissectum, Misopates orontium, Myagrum perfoliatum, Reseda phyteuma, Sper­gularia salina and Veronica anagalloides populations. Erodium hoefftianum is a member of the natural flora, but is now found only in old-fields. We found some pasture weeds in re­gions where they are not common (e.g. Bupleurum tenuissimum, Cerastium dubium and Tri­folium striatum). The study also presents some species that are data deficient for taxonomic reasons, but not very rare ones (or we don’t know that). This group includes Arabis sagittata, Bolboschoenus glaucus, Bromus commutatus, B. racemosus, B. ramosus, Fumaria vaillantii subsp. schrammii, Ononis spi­nosiformis subsp. semihircina, Potentilla collina and Viola suavis “white morfotype”. We have drawn attention to the effect of ecological-botanical works on flora-influencing. We found An­themis ruthenica (species of sandy grasslands) in a moun­tain meadow, which is probably the result of seeds accidentally introduced by researchers. Finally, the paper provides data on the current distribution of hybrid taxa. A new individual of Betula ×rhombifolia was established in the Mátra Mts. We found some Euphorbia individuals that appeared to be a transitional form between E. esila and E. virgata (E. ×intercedens; Eu. esula subsp. saratoi). We also present some Verbascum and Viola hybrids. Hybrids were determined on a macromorphological basis.

• New data to spreading of Plantago coronopus in Hungary

  99-101

  Dávid Schmidt

  Views:

  488

  In this study, new data of the naturalized roadside alien Plantago coronopus L. found in 2020 are listed. Numerous stands have been detected at sites far from previously known localities. These data show that P. coronopus is still in an intense phase of its spread. The species currently known from 90 flora mapping units in Hungary. Its new observations come from the narrow vegetation strip along roadsides, with the exception of the new data from Szombathely, which comes from the parking lot of a shopping center.