Hundreds of thousands of "antique" plants and flowers are to be studied to measure changing levels of pollution and air ...

Herbarium sheets are a way of preserving plants and flowers on paper and were first made in Italy in the 15th Century. If properly conserved, they can last for hundreds of years. Stored at the ...

The key information to note on a herbarium sheet is when and where it was collected ... If you're trying to press a bulkier plant, add extra paper and card to ensure that every part of the plant and ...

The Dead Plant Society project will lead a search through the 250,000-strong collection in Leeds to compare modern plants and ...