http://hdl.handle.net/11089/15601 2026-04-09T06:17:24Z http://hdl.handle.net/11089/15717 Antropogeniczne zagrożenie chwastów segetalnych Polycnemum arvense L., Hemiaria hirsuta L. i H. glabra L. oraz problemy ich ochrony Warcholińska, A. UrszuIa In the paper there are presented the distribution and abundance of localities of Polycnemum arvense, Herniaria hirsuta and H. glabra in the area of Łódź Elevation. Apart from that, there are the degree and causes of endangerment and an ecessity and conditions of their preservation are indicated. 1986-01-01T00:00:00Z http://hdl.handle.net/11089/15716 Glony osiadłe ujściowych odcinków głównych dopływów Widawki Ligowski, Ryszard Sessile algae were collected from lower sections of therivers: Rakówka, Pilsia, Krasawa, Grabi a and Nieciecz. The investigated rivers lie with in a cone of depression formed due to the construction of the lignite open mine Bełchatów. Quantitative and qualitative composition of algal communities was determined in the samples. In total, 417 taxa of algae and 3 taxa of bacteria were recorded - among them: 153 taxa from the Rakówka River, 211 taxa from the Pilsia River, 222 taxa from the Krasawa River, 220 taxa from the Grabia River, and 234 taxa from the Nieciecz River. 1986-01-01T00:00:00Z http://hdl.handle.net/11089/15715 Wolffia arrhiza i Wolffietum arhizae w Polsce, ze szczególnym uwzględnieniem Kujaw Południowych Samosiej, Ludwik; Kucharski, Leszek The paper present state of knowledge about dislocation and ecology of Wolffia arrhiza and it’s plant association on area of Poland. The authors describe 35 new localities of Wolffia arrhiza in the South Kujawy Region. 1986-01-01T00:00:00Z http://hdl.handle.net/11089/15714 Pamięci prof. dr habil. Jakuba Mowszowicza 1986-01-01T00:00:00Z