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The paper presents the results of the research on the composition of lichen species of larch in the towns of Podlasie. 29 species of lichenicolous fungi have been recorded. A synthesis of epiphytic lichen biota of larch in Poland has been made. Despite the homogeneity of the substrate, the lichen biota of larch in Poland according to our own data and literature amounts to 107 species, some of which are rare. The richest lichen biota of larch in Poland occurs in mountainous areas. Many species that inhabit the bark of that phorophyte belong to the species extinct in Poland.
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A paper presents a list of 89 species found in Supraśl town (Podlasie, NE Poland). The investigations in the area of Supraśl were carried out in 2013–2014, on 41 research stands. Eighteen species are considered to be threatened in Poland. The lichens occur on all substrate types: soil, decaying wood, bark of all trees and shrubs species, boulders, concrete, foundation, mortar, plaster and bryophytes. Valuable components of the lichen biota belong mostly to the group of threatened species not only on the regional, but also on the national scale. There are: Anaptychia ciliaris, Pleurosticta acetabulum, Ramalina fastigiata and others.
The Holy Hill Grabarka is one of the most important orthodox sanctuaries in Poland. The sanctuary is situated in Podlasie region between Bug and Narew rivers. It grew in the shade of well developing (in the first centuries of the second millennium) towns Mielnik and Drohiczyn. The most striking thing is that the church is surrounded by a forest of thousands of crosses brought by pilgrims. The study present 64 species of epiphytic, epixylic, epilythic and epigeic lichens. Among 64 lichen species 11 are considered to be threatened in Poland.
Praca przedstawia wykaz 31 gatunków porostów z rodzaju wzorzec Rhizocarpon stwierdzonych w parkach narodowych z obszaru Polski. Występują one w 15 parkach. Największą liczbę gatunków odnotowano w parkach narodowych położonych na terenie gór: Tatrzańskim PN – 27 gatunków, Karkonoskim PN – 19, Pienińskim PN – 11, Bieszczadzkim PN – 10 i Gorczańskim PN – 9. W nizinnych parkach narodowych (PN Bory Tucholskie, Biebrzański PN, Wigierski PN, Białowieski PN, Drawieński PN, Woliński PN) liczba gatunków waha się od 1 do 6. Materiałem badań były „zrewidowane” okazy zielnikowe (LBL, KRA-L, KRAM-L) oraz dane publikowane z parków narodowych
The study presents the results of lichenological researches carried out in Sokółka town (Podlaskie voivodeship, north-eastern Poland). The investigations in the area of Sokółka were carried out in the years 2012–2013, on 50 research stands. In total, 76 species of lichens growing on natural and anthropogenic substrata have been recorded. The distributions of lichens in different urban lands are presented. Among them, protected species and lichens threatened in the country are distinguished.
In northeastern Poland, the chemical variation of the Cladonia chlorophaea-pyxidata group was much neglected, as TLC has not been used in delimitation of species differing in the chemistry. As a great part of herbal material of University in Bialystok from NE Poland was misidentified, I found my studies to be necessary. Based on the collection of 123 specimens deposited in Herbarium of University in Bialystok, nine species of the C. pyxidata-chlorophaea group are reported from NE Poland. The morphology, secondary chemistry, and ecology of examined lichens are presented and the list of localities is provided. The results revealed that C. fimbriata is the most common species in the northeastern Poland, comprising around 33% of the studied specimens. Cladonia conista, C. cryptochlorophaea, and C. merochlorophaea are known only from very few locations. This study shed light on the role of the lichens substances to diagnosis of the species of C. pyxidatachlorophaea group.
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