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The paper presents spatial variation in floristic indices in the mediumsize valley of the San River. Indices of species richness and synanthropization rates were calculated for 366 1 x 1 km cartogram squares. The Spearman rank correlation coefficient was used to analyze the relationships between individual indices. Species richness in individual basic plots ranges from 102 to 391, with a mean of 248...
Floristic and ecological data was collected three times (in 2000, 2006 and 2011) in fifteen urban parks in Wrocław. Results were compared to determine whether bryophytes can survive in urban environments, or whether they die off because of the constant pressure of urbanization. Other questions examined include whether bryophytes remain in the same habitats, or whether they change their spatial distribution;...
The paper contains a list of 39 liverwort species collected on decaying wood (logs, stumps and snags) and on tree-fall disturbances (root plates, pits and mounds) in forest communities in the Karkonosze. Three of these species are threatened in Poland: Cephalozia catenulata, C. leucantha, Marsupella emarginata and three are partially protected by law: Cephalozia catenulata, Bazzania trilobata i Ptilidium...
Na podstawie badań przeprowadzonych w 51 parkach wiejskich w stylu krajobrazowym (XVIII i XIX w.) o minimalnej powierzchni 2 ha, leżących w Kotlinie Sandomierskiej na siedliskach grądów (Tilio-Carpinetum) odmiany małopolskiej, określono zróżnicowanie florystyczno-fitosocjologiczne warstwy ziół. Parki wiejskie podzielono ze względu na dwie zmienne: pielęgnację (rozumianą jako koszenie warstwy ziół)...
The paper presents phytosociological records of the mire nature reserve Torfowisko Kunickie near Legnica, SW Poland, which are compared with previous data. The clear effects of eutrophication of the mire surroundings connected with an increasing drying out (because of existed drainage ditch system and low rainfalls during last years) cause that associations of oligo-/dys- and mesotrophic habitats...
The paper presents results of floristic research of vascular plants in the nature reserve “Cisy” located near Bardo town in Bardo Mts (south-western Poland). Altogether 144 species have been found. Some of them are rare and threatened in Poland, e.g. Cephalanthera longifolia, Dactylorhiza sambucina, Neottia nidus-avis, Platanthera bifolia and Taxus baccata.
Carex humilis is one of the rarest vascular plants in Lower Silesia. It has been observed only on 5 locations: 1 in the lowland and 4 in Sudety Foreland. 2 of them have historical value only. Existing populations are small and isolated, moreover, shaded plants hardly produce seeds. The species is critically endangered.
Two new for Wrocław localities of Artemisia annua L., the species not recognised since 1976 in this city, has been found. The plant grew on a sack with sand, on railway and on a new sidewalk near a church. Formerly it was reported within Wrocław city limits several times, usually from rubbish. This paper presents short description of this species, its ecological and climatic requirements, information...
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