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The spores and pollen of higher plants have enormous value in taxonomic studies by contributing to our understanding of past and present biodiversity, and of environmental change. The critical features used in species identification are wall structure and surface pattern. However, ultrastructural...
The biomass and metal concentrations of two populations of Phragmites australis were studied by growth in a glasshouse in three ameliorated substrata (Mai Po (MP) sediment, fly ash (FA) and lead/zinc mine tailings (TL)) under flooded and dry conditions for 90 d. Plants were raised from seeds from...