{"id":13829,"date":"2017-05-25T12:55:36","date_gmt":"2017-05-25T12:55:36","guid":{"rendered":"https:\/\/bladmineerders.nl\/fungi\/ascomycota\/erysiphales\/podosphaera\/podosphaera-clandestina\/"},"modified":"2025-06-28T16:08:13","modified_gmt":"2025-06-28T14:08:13","slug":"podosphaera-clandestina","status":"publish","type":"page","link":"https:\/\/bladmineerders.nl\/en\/parasites\/fungi\/dikarya\/ascomycota\/pezizomycotina\/leotiomycetes\/leotiomycetidae\/helotiales\/erysiphaceae\/podosphaera\/podosphaera-clandestina\/","title":{"rendered":"Podosphaera clandestina"},"content":{"rendered":"<h1><em>Podosphaera clandestina<\/em> (Wallroth) L\u00e9veill\u00e9, 1851<\/h1>\n<p><\/p>\n<h2 class=\"vernacular-name\"><\/h2>\n<p><br \/>\n<br \/>\n<\/p>\n<h2>on woody Rosaceae<\/h2>\n<p><\/p>\n<div class=\"beeld\">\n<img loading=\"lazy\" decoding=\"async\" class=\"centreer1\" src=\"https:\/\/bladmineerders.nl\/wp-content\/uploads\/beeld\/22929.jpg\" alt=\"Podosphaera clandestina on Crataegus monogyna\" width=\"500\" height=\"385\" \/><br \/>\n<br \/>\n<\/p>\n<p class=\"en-bijschrift\"><em>Crataegus monogyna<\/em>, Amstelveen, Schinkelbos<\/p>\n<p><br \/>\n<!-- beeld --><\/p>\n<p><br \/>\n<\/p>\n<h3 class=\"head-gall\">gall<\/h3>\n<p>mycelium amphigenous, often also on stem, forming a thin white film. The fungus may cause galling and reddening of young shoots. Appressoria poorly developed to nipple-shaped. Conidia short-oval, formed in chains, with fibrosin bodies. Cleistothecia with a single ascus, containing 6-8 spores. Appendages 6-12,  equatorial or somewhat above, 1-2 x the diameter; they are stiff, almost straight, largely brown; at the very tip they are several times dichotomously branching in quick succession.<\/p>\n<p><\/p>\n<p><br \/>\n<\/p>\n<h3 class=\"head-hostplant\">host plants<\/h3>\n<p>Rosaceae, oligophagous<\/p>\n<p><\/p>\n<p class=\"latinnames\"> <a href=\"https:\/\/bladmineerders.nl\/crataegus\">Crataegus<\/a> azarolus, coccinea, crus-galli, laevigata, macrocarpa, meyerei, monogyna, orientalis, pallasii, pentagyna, pseudoheterophylla, rhipidophylla, sanguinea; <a href=\"https:\/\/bladmineerders.nl\/cydonia\">Cydonia<\/a> oblonga; <a href=\"https:\/\/bladmineerders.nl\/mespilus\">Mespilus<\/a> germanica, punctata; <a href=\"https:\/\/bladmineerders.nl\/prunus\">? Prunus<\/a> padus; <a href=\"https:\/\/bladmineerders.nl\/pyrus\">Pyrus<\/a> communis; <a href=\"https:\/\/bladmineerders.nl\/spiraea\">Spiraea<\/a> douglasii, japonica, salicifolia, x semperflorens, x vanhouttei.<\/p>\n<p><br \/>\n<\/p>\n<p>According to Ellis &#038; Ellis also on <em><a href=\"https:\/\/bladmineerders.nl\/pyracantha\">Pyracantha<\/a> coccinea<\/em>.<\/p>\n<p><br \/>\n<!--waardplanten--><\/p>\n<p><br \/>\n<\/p>\n<h3 class=\"head-synonym\">synonyms<\/h3>\n<p><em>Podosphaera oxyacanthae<\/em> (de Candolle) de Bary, 1870.<\/p>\n<p><\/p>\n<h3 class=\"head-references\">references<\/h3>\n<p class=\"references\">Blumer (1967a), Brandenburger (1985a), Braun (1995a), Braun &#038; Cook (2012a), Bresinsky (2016a), Buhr (1964b), Czerniawska, Madej, Adamska ao (2000a), Ellis &#038; Ellis (1997a: 114), Jage, Klenke, Kruse ao (2016a), Jage, Klenke &#038; Kummer (2010a), Klenke &#038; Scholler (2015a), Kruse (2014a, 2019a), Kruse &#038; Jage (2014a), Leysen (2017a), Mieslerov\u00e1, Sedl\u00e1\u0159ov\u00e1, Michutov\u00e1, ao (2020b), Pi\u0105tek (2004a), Roskam (2009a), Ruszkiewicz-Michalska (2006a), Ruszkiewicz-Michalska &#038; Michalski (2005a), Talg\u00f8, Sundheim, Gj\u00e6rum ao (2010a).<\/p>","protected":false},"excerpt":{"rendered":"<p>Podosphaera clandestina (Wallroth) L\u00e9veill\u00e9, 1851 on woody Rosaceae Crataegus monogyna, Amstelveen, Schinkelbos gall mycelium amphigenous, often also on stem, forming a thin white film. The fungus may cause galling and reddening of young shoots. Appressoria poorly developed to nipple-shaped. Conidia short-oval, formed in chains, with fibrosin bodies. Cleistothecia with a single ascus, containing 6-8 spores. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":13822,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"parasite-species.php","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-13829","page","type-page","status-publish","hentry","category-parasite"],"_links":{"self":[{"href":"https:\/\/bladmineerders.nl\/en\/wp-json\/wp\/v2\/pages\/13829","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bladmineerders.nl\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/bladmineerders.nl\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/bladmineerders.nl\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bladmineerders.nl\/en\/wp-json\/wp\/v2\/comments?post=13829"}],"version-history":[{"count":0,"href":"https:\/\/bladmineerders.nl\/en\/wp-json\/wp\/v2\/pages\/13829\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/bladmineerders.nl\/en\/wp-json\/wp\/v2\/pages\/13822"}],"wp:attachment":[{"href":"https:\/\/bladmineerders.nl\/en\/wp-json\/wp\/v2\/media?parent=13829"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bladmineerders.nl\/en\/wp-json\/wp\/v2\/categories?post=13829"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bladmineerders.nl\/en\/wp-json\/wp\/v2\/tags?post=13829"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}