Matilda Knowles: a woman’s life in lichen

Matilda Knowles was an expert on lichens, those crusty growths you see on rocks, walls and trees. Here, the director of the National Botanic Gardens, Dr Matthew Jebb shows us specimens from her collection.

Associated article


EU and US reach deal on tariffs

European Commission president Ursula von der Leyen and US president Donald Trump at Turnberry in Scotland on Sunday. Video: Reuters. Illustration: Paul Scott


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