{"id":1694,"date":"2014-12-01T22:13:43","date_gmt":"2014-12-01T22:13:43","guid":{"rendered":"http:\/\/blogs.reading.ac.uk\/crg\/?p=1694"},"modified":"2014-12-01T22:13:43","modified_gmt":"2014-12-01T22:13:43","slug":"2014-botanical-advent-calendar","status":"publish","type":"post","link":"https:\/\/research.reading.ac.uk\/herbarium\/2014\/12\/01\/2014-botanical-advent-calendar\/","title":{"rendered":"2014 Botanical Advent Calendar &#8211; Day 1 &#8211; Hedera helix"},"content":{"rendered":"<h1>By <a href=\"https:\/\/twitter.com\/BotanyRNG\">Alastair Culham<\/a><\/h1>\n<h3>1st December &#8211; <em>Hedera helix<\/em> (Ivy)<\/h3>\n<p><span class=\"userContent\">1st day of <a class=\"_58cn broken_link\" href=\"https:\/\/www.facebook.com\/hashtag\/adventbotany\">#AdventBotany<\/a> &#8211; <em>Hedera helix<\/em> &#8211; highly variable evergreen leaves symbolize eternity and resurrection. Ivy has a distinctive waxy sheen to the upper surface f the leaf. It&#8217;s reputed to keep witches away if you grow it up a house wall. Long associated with mid-winter festivals including Christmas because it stays green even in this cold dark season. All leaves in the first photo are from a single plant while each from the second is from a different taxon!<\/span><\/p>\n<div id='gallery-1' class='gallery galleryid-1694 gallery-columns-3 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/research.reading.ac.uk\/herbarium\/hedera1\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/research.reading.ac.uk\/herbarium\/wp-content\/uploads\/sites\/42\/2014\/12\/hedera1-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-1695\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-1695'>\n\t\t\t\tDay 1 &#8211; A selection of <i>Hedera helix<\/i> leaves from a single plant showing adult and juvenile forms\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/research.reading.ac.uk\/herbarium\/hedera1decb1\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/research.reading.ac.uk\/herbarium\/wp-content\/uploads\/sites\/42\/2014\/12\/hedera1decb1-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-1696\" srcset=\"https:\/\/research.reading.ac.uk\/herbarium\/wp-content\/uploads\/sites\/42\/2014\/12\/hedera1decb1-150x150.jpg 150w, https:\/\/research.reading.ac.uk\/herbarium\/wp-content\/uploads\/sites\/42\/2014\/12\/hedera1decb1-768x775.jpg 768w, https:\/\/research.reading.ac.uk\/herbarium\/wp-content\/uploads\/sites\/42\/2014\/12\/hedera1decb1.jpg 1000w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-1696'>\n\t\t\t\tEach of these leaves is from a different <i>Hedera<\/i> taxon but many look highly similar\n\t\t\t\t<\/figcaption><\/figure>\n\t\t<\/div>\n\n<p><a title=\"Chem Advent day 2\" href=\"http:\/\/www.compoundchem.com\/2014advent2\/#day2\" target=\"_blank\" rel=\"noopener noreferrer\">Ivy contains falcarinol<\/a>, a natural fungicide.<\/p>\n<p>Each day during advent there will be a new entry by @RNGherb or @DrMgoeswild<\/p>\n<h2>Editor&#8217;s note:<\/h2>\n<p>From Dr Stephen Jury &#8211; The first new molecular studies were done in Reading by Dr Pablo Vargas on a post-doc who continues this work as a member of staff in Madrid. He solved some problems and agreed with McAllister&#8217;s earlier unaccepted treatments that are now accepted in a book, following several important publications in botanical journals!<\/p>\n<p>McAllister, H. &amp; Marshall, R., (2017) <a href=\"http:\/\/www.rhsshop.co.uk\/productdetails.aspx?id=10000008&amp;itemno=9781907057731\" target=\"_blank\" rel=\"noopener noreferrer\" class=\"broken_link\"><em>Hedera<\/em>: the complete guide<\/a>. Peterborough, RHS.<\/p>\n<p>See also our #AdventBotany2017\u00a0 blog on <a href=\"https:\/\/blogs.reading.ac.uk\/crg\/adventbotany-day-5-ivy\/\">victorian ivy cultivars<\/a>.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>By Alastair Culham 1st December &#8211; Hedera helix (Ivy) 1st day of #AdventBotany &#8211; Hedera helix &#8211; highly variable evergreen leaves symbolize eternity and resurrection. Ivy has a distinctive waxy&#8230;<a class=\"read-more\" href=\"&#104;&#116;&#116;&#112;&#115;&#58;&#47;&#47;&#114;&#101;&#115;&#101;&#97;&#114;&#99;&#104;&#46;&#114;&#101;&#97;&#100;&#105;&#110;&#103;&#46;&#97;&#99;&#46;&#117;&#107;&#47;&#104;&#101;&#114;&#98;&#97;&#114;&#105;&#117;&#109;&#47;&#50;&#48;&#49;&#52;&#47;&#49;&#50;&#47;&#48;&#49;&#47;&#50;&#48;&#49;&#52;&#45;&#98;&#111;&#116;&#97;&#110;&#105;&#99;&#97;&#108;&#45;&#97;&#100;&#118;&#101;&#110;&#116;&#45;&#99;&#97;&#108;&#101;&#110;&#100;&#97;&#114;&#47;\">Read More ><\/a><\/p>\n","protected":false},"author":49,"featured_media":1695,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"__cvm_playback_settings":[],"__cvm_video_id":"","footnotes":"","_links_to":"","_links_to_target":""},"categories":[52,53,54],"tags":[29],"class_list":["post-1694","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-advent","category-herbarium-rng","category-public-engagement-with-science","tag-adventbotany"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.8.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>2014 Botanical Advent Calendar - Day 1 - Hedera helix - Herbarium RNG<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/research.reading.ac.uk\/herbarium\/2014\/12\/01\/2014-botanical-advent-calendar\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2014 Botanical Advent Calendar - Day 1 - Hedera helix - Herbarium RNG\" \/>\n<meta property=\"og:description\" content=\"By Alastair Culham 1st December &#8211; Hedera helix (Ivy) 1st day of #AdventBotany &#8211; Hedera helix &#8211; highly variable evergreen leaves symbolize eternity and resurrection. 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