Hawthorn juniper rust (Gymnosporangium sp.) rust pustule swelling on the stem and spike of hawthorn (Crataegus monogyna), May

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Photo credit: © Nigel Cattlin / Alamy / Afripics
License: Licensed
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Keywords: aecial, basidiomycota, berkshire, clavariiforme, clavipes, confusum, crataegus, disease, diseases, england, fire, fungal, fungi, fungus, gall, galls, gymnosporangium, hawthorn, heteroecious, horns, host, hosts, juniper, monogyna, pathogenic, pear, plant, pucciniae, pucciniomycetes, rosaceae, rust, stem, swollen, tongues, uk