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Analysis of endosperm development in plants from contaminated sites (vicinity of the Żelazny Most copper post-flotation reservoir in the Legnica-Głogów Copper District, and the zinc spoil in Katowice-Wełnowiec) showed general similarities in the pattern of endosperm formation in Echium vulgare, but also deviation from typical haustorium structure (~23% frequency), premature degeneration of the haustorium,...
The present paper gives the chromosome numbers of 27 species belonging to Angiosperms. Most of chromosome numbers established in Polish material was previously known for plants from other geographical regions or from Botanical Gardens. A new report is the presence of accessory chromosome in diploid set of Allium angulosum L.
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