{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,15]],"date-time":"2026-08-15T05:26:27Z","timestamp":1786771587026,"version":"build-2736575974"},"reference-count":34,"publisher":"Westerdijk Fungal Biodiversity Institute","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["persoonia"],"published-print":{"date-parts":[[2026,6,15]]},"abstract":"<jats:p>\n                    In October 2022, disease symptoms in the form of multiple blackened cankers and dieback of shoots and branches were noted in Scots pine (\n                    <jats:italic>Pinus sylvestris<\/jats:italic>\n                    ) in Scotland. Trees were affected across a range of site types, including natural Caledonian pine forests, planted native\n woodland and commercial plantations. We investigated the geographical extent of symptoms in the UK, which occurred across most regions of Scotland,\n                    <jats:italic>Curreya pithyophila'.<\/jats:italic>\n                    The fungus harbours immature colonies of the native Scots pine woolly adelgid,\n                    <jats:italic>Pineus pini<\/jats:italic>\n                    , which live beneath\n the stroma and feed on the tree, initiating wounds. These wounds can then be invaded by secondary agents, such as a fungal pathogen of pine,\n                    <jats:italic>Crumenulopsis sororia<\/jats:italic>\n                    , which is thought to cause the blackened cankers.\n                    <jats:italic>Curreya pithyophila<\/jats:italic>\n                    ' occurred on plantation Scots pine in Perthshire\n in the 1900s and in north-east Scotland in the 1960s. A literature review of the taxonomy and\n                    <jats:italic>Curreya pithyophila<\/jats:italic>\n                    ' is presented. The perplexing ability of this fungus to produce two ascospore forms (phragmospores and dictyospores) from apparently morphologically identical stromata,\n at the same site and often on the same tree or branch, was investigated. After morphological, culture and genetic analyses of single\n                    <jats:italic>C. pithyophila<\/jats:italic>\n                    ' in the UK comprises two distinct but co-occurring species. Multigene analyses show that the closely related but separate species occur\n in the family\n                    <jats:italic>Leptosphaeriaceae<\/jats:italic>\n                    in a clade with\n                    <jats:italic>Alloleptosphaeria<\/jats:italic>\n                    and sister to\n                    <jats:italic>Leptosphaeria<\/jats:italic>\n                    . Morphological comparisons with\n                    <jats:italic>Sphaeria pithyophila<\/jats:italic>\n                    (as\n                    <jats:italic>pityophila<\/jats:italic>\n                    '), while the phragmospore-producing species matches a syntype of\n                    <jats:italic>Sphaeria parmeliarum<\/jats:italic>\n                    .\n We retain\n                    <jats:italic>Cucurbidothis<\/jats:italic>\n                    as the correct generic name, designate a lectotype for the type species\n                    <jats:italic>Cucurbidothis pithyophila<\/jats:italic>\n                    , and recombine the second species as\n                    <jats:italic>Cucurbidothis parmeliarum comb. nov.<\/jats:italic>\n                    , also designating a lectotype. These species differ not only in spore morphology\n but also in culture appearance, with\n                    <jats:italic>C. pithyophila<\/jats:italic>\n                    producing grey and\n                    <jats:italic>C. parmeliarum<\/jats:italic>\n                    producing apricot coloured cultures. Both species can also produce a coelomycetous asexual morph comprising brown, ellipsoidal conidia, with pycnidial conidiomata often occurring adjacent to\n the ascomata in the same stroma. Histological studies showed that both taxa only penetrate between the periderm layers with no evidence of fungal growth in the living phloem and cambium below, supporting the hypothesis that these species are dependent on the adelgids for nutrition. A third\n species,\n                    <jats:italic>Cucurbidothis shangrilana comb. nov.<\/jats:italic>\n                    , is also discussed.\n                  <\/jats:p>","DOI":"10.3114\/persoonia.2026.56.02","type":"journal-article","created":{"date-parts":[[2026,2,14]],"date-time":"2026-02-14T01:05:27Z","timestamp":1771031127000},"page":"175-199","source":"Crossref","is-referenced-by-count":1,"title":["The enigmatic woolly aphid associated fungus '\n                    <i>Cucurbidothis pithyophila<\/i>\n                    ', now threatening Scots pine in the UK, is revealed as two distinct but co-occurring species"],"prefix":"10.3114","volume":"56","author":[{"given":"J.E.","family":"Taylor","sequence":"first","affiliation":[{"name":"Royal Botanic Garden Edinburgh, 20a Inverleith Row, Edinburgh EH3 5LR, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M.","family":"Stanisz-Migal","sequence":"additional","affiliation":[{"name":"Forest Research, Northern Research Station, Roslin, Midlothian EH25 9SY, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P.M.","family":"Sharp","sequence":"additional","affiliation":[{"name":"Institute of Ecology and Evolution, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3FL, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"F.","family":"Tierney-Kitchener","sequence":"additional","affiliation":[{"name":"Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3FL, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"K.","family":"Lester","sequence":"additional","affiliation":[{"name":"Forest Research, Northern Research Station, Roslin, Midlothian EH25 9SY, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M.","family":"Davidson","sequence":"additional","affiliation":[{"name":"Forest Research, Northern Research Station, Roslin, Midlothian EH25 9SY, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S.","family":"Green","sequence":"additional","affiliation":[{"name":"Forest Research, Northern Research Station, Roslin, Midlothian EH25 9SY, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1645","reference":[{"key":"R283_381_736","doi-asserted-by":"crossref","first-page":"462","DOI":"10.1093\/oxfordjournals.molbev.a025607","volume":"13","journal-title":"Molecular Biology and Evolution","ISSN":"https:\/\/id.crossref.org\/issn\/0737-4038","issn-type":"print"},{"key":"R283_444_690","first-page":"1","volume":"62","journal-title":"Memoirs of the New York Botanical 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