{"id":6571,"date":"2017-01-15T15:30:54","date_gmt":"2017-01-15T14:30:54","guid":{"rendered":"https:\/\/afabego.fr\/?page_id=6571"},"modified":"2022-01-31T23:47:32","modified_gmt":"2022-01-31T22:47:32","slug":"les-stipules","status":"publish","type":"page","link":"https:\/\/afabego.fr\/en\/culture\/un-peu-de-botanique\/les-stipules\/","title":{"rendered":"Un peu de botanique : Les stipules"},"content":{"rendered":"<div class=\"vc_row wpb_row vc_row-fluid\">\n            \t\t\t\t\t\t\t<div class=\"gf-container container\">\n\t\t\t\t\t\t\t\t<div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p>Les stipules sont des appendices foliac\u00e9s situ\u00e9s en g\u00e9n\u00e9ral par paire \u00e0 la base des p\u00e9tioles de feuilles (chez les plantes Dicotyl\u00e9dones).<\/p>\n<p>Les feuilles des plantes du genre Begonia ont toujours des stipules.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div>\t\t\t\t\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t<div class=\"vc_row wpb_row vc_row-fluid\">\n            \t\t\t\t\t\t\t<div class=\"gf-container container\">\n\t\t\t\t\t\t\t\t<div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h3><strong>Persistance<\/strong><\/h3>\n<h4><strong>Persistantes<\/strong><\/h4>\n<p>Quand elles sont encore pr\u00e9sentes \u00e0 la base des feuilles adultes, les stipules sont dites persistantes ; elles tombent parfois seulement apr\u00e8s la chute des feuilles correspondantes.<\/p>\n<h4><strong>Caduques<\/strong><\/h4>\n<p>Sinon, elles sont dites caduques ; elles sont souvent pr\u00e9cocement caduques.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><a href=\"https:\/\/afabego.fr\/wp-content\/uploads\/2017\/01\/B.-mazae-viridis.jpg\"><em>B. mazae<\/em><\/a>\u00a0 f.\u00a0<em>viridis\u00a0\u00a0<\/em>Ziesenhenne \/ section\u00a0<em>Gireoudia\u00a0<\/em>\/ Mexique \/ stipules persistantes<\/li>\n<li><a href=\"https:\/\/afabego.fr\/wp-content\/uploads\/2017\/01\/B.-eminii-1.jpg\"><em>B. eminii\u00a0<\/em><\/a>Warburg \/ section\u00a0<em>Tetraphila\u00a0<\/em>\/ Afrique tropicale (du Nigeria \u00e0 l\u2019Angola) \/ stipules pr\u00e9cocement caduques, fan\u00e9es<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3><strong>La marge<\/strong><\/h3>\n<h4><strong>Enti\u00e8re<\/strong><\/h4>\n<p>La marge est dite enti\u00e8re quand elle n\u2019a aucune incision.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><a href=\"https:\/\/afabego.fr\/wp-content\/uploads\/2017\/01\/B.-chlorosticta.jpg\"><em>B. chlorosticta\u00a0<\/em><\/a>Sands \/ section\u00a0<em>Petermannia\u00a0<\/em>\/ Malaisie (Born\u00e9o Sarawak) \/ stipules \u00e0 marge enti\u00e8re<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4><strong>Dent\u00e9e<\/strong><\/h4>\n<p>Sinon, elle est dite dent\u00e9e.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><a href=\"https:\/\/afabego.fr\/wp-content\/uploads\/2017\/01\/B.-auriculata.jpg\"><em>B. auriculata\u00a0<\/em><\/a>JD Hooker \/ section\u00a0<em>Filicibegonia\u00a0<\/em>\/ Gabon \/ stipules dent\u00e9es<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Le caract\u00e8re de persistance et la marge des stipules ne sont pas d\u00e9terminants pour l\u2019appartenance \u00e0 une section.<\/p>\n<h3><strong>La forme<\/strong><\/h3>\n<h4><strong>Triangulaire<\/strong><\/h4>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><em><a href=\"https:\/\/afabego.fr\/wp-content\/uploads\/2017\/01\/B.-mazae-var.-mazae.jpg\">B.\u00a0<\/a><\/em><em>mazae\u00a0<\/em>\u00a0var.\u00a0<em>mazae\u00a0<\/em>\u00a0Ziesenhenne \/ section\u00a0<em>Gireoudia\u00a0<\/em>\/ Mexique \/ stipules glabres triangulaires acumin\u00e9es<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4><strong>Elliptique-ovale<\/strong><\/h4>\n<h4><strong>Acumin\u00e9e<\/strong>\u00a0(se r\u00e9tr\u00e9cissant progressivement pour se terminer brusquement en pointe effil\u00e9e) ou non\u00a0:<\/h4>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><a href=\"https:\/\/afabego.fr\/wp-content\/uploads\/2017\/01\/B.-convallariodora.jpg\"><em><u>B. convalloriodora\u00a0<\/u><\/em><\/a>C. de Candolle \/ section\u00a0<em>Ruizopavonia\u00a0<\/em>\/ Mexique \u2013 Am\u00e9rique centrale \/ stipules acumin\u00e9es<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4><strong>Cuspid\u00e9e<\/strong><\/h4>\n<p>Att\u00e9nu\u00e9e en pointe aigue et raide, faisant un angle vif avec le bord.<\/p>\n<h4><strong>Longuement att\u00e9nu\u00e9e<\/strong><\/h4>\n<p>Dont la largeur diminue progressivement.<\/p>\n<h4><strong>Naviculaire<\/strong><\/h4>\n<p>En forme de bateau ou de navette.<\/p>\n<p><strong>Les deux stipules sont parfois diff\u00e9rentes<\/strong>, l\u2019externe enveloppant la 2\u00e8me (interne) et le bourgeon qui donnera la feuille.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><a href=\"https:\/\/afabego.fr\/wp-content\/uploads\/2017\/01\/B.-mannii.jpg\"><em>B. mannii\u00a0\u00a0<\/em><\/a>W J\u00a0Hooker \/ section\u00a0<em>Tetraphila\u00a0<\/em>\/ de la Guin\u00e9e au Gabon \/ la stipule externe enveloppe le bourgeon de la future feuille et la stipule inerne<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Elles poss\u00e8dent parfois une<strong>\u00a0nervure m\u00e9diane\u00a0<\/strong>pro\u00e9minente et un\u00a0<strong>pli<\/strong> sur cette nervure.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><a href=\"https:\/\/afabego.fr\/wp-content\/uploads\/2017\/01\/B.-venosa.jpg\"><em><u>B. venosa\u00a0<\/u><\/em><\/a>Skan \/ section\u00a0<em>Begonia\u00a0<\/em>\/ Br\u00e9sil \/ stipules avec une nervure m\u00e9diane bien marqu\u00e9e<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3><strong>L\u2019aspect<\/strong><\/h3>\n<p>L&rsquo;ext\u00e9rieur des stipules peut \u00eatre <strong>glabre\u00a0<\/strong>ou<strong>\u00a0poilu<\/strong> sur toute leur surface.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><a href=\"https:\/\/afabego.fr\/wp-content\/uploads\/2017\/01\/B.-listada.jpg\"><em>B. listada\u00a0<\/em><\/a>LB Smith &amp; Wasshausen \/ section\u00a0<em>Pritzelia\u00a0<\/em>\/ Br\u00e9sil \u2013 Paraguay \u2013 Argentine \/ stipules eni\u00e8rement poilues<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3><strong>La marge<\/strong><\/h3>\n<h4><strong>Denticul\u00e9e<\/strong>\u00a0ou<strong> Serrat\u00e9e<\/strong><\/h4>\n<p>Avec des petites dents rappelant celles d\u2019une scie.<\/p>\n<h4><strong>Frang\u00e9e<\/strong><\/h4>\n<p>Bord dens\u00e9ment et finement d\u00e9coup\u00e9.<\/p>\n<h4><strong>Cili\u00e9e<\/strong><\/h4>\n<p>Bord avec des poils (prolongeant souvent les dents de la marge).<\/p>\n<p><a href=\"https:\/\/afabego.fr\/wp-content\/uploads\/2017\/01\/B.-Philippines-sp..jpg\"><em>B. Philippines sp.<\/em><\/a>\u00a0\/ marge des stipules finement dent\u00e9e et cili\u00e9e<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div>\t\t\t\t\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>","protected":false},"excerpt":{"rendered":"Les stipules sont des appendices foliac\u00e9s situ\u00e9s en g\u00e9n\u00e9ral par paire \u00e0 la base des p\u00e9tioles de feuilles (chez les plantes Dicotyl\u00e9dones). Les feuilles des plantes du genre Begonia ont toujours des stipules. Persistance Persistantes Quand elles sont encore pr\u00e9sentes \u00e0 la base des feuilles adultes, les stipules sont dites persistantes ; elles tombent parfois [...]","protected":false},"author":2,"featured_media":0,"parent":5477,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/afabego.fr\/en\/wp-json\/wp\/v2\/pages\/6571"}],"collection":[{"href":"https:\/\/afabego.fr\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/afabego.fr\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/afabego.fr\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/afabego.fr\/en\/wp-json\/wp\/v2\/comments?post=6571"}],"version-history":[{"count":49,"href":"https:\/\/afabego.fr\/en\/wp-json\/wp\/v2\/pages\/6571\/revisions"}],"predecessor-version":[{"id":10746,"href":"https:\/\/afabego.fr\/en\/wp-json\/wp\/v2\/pages\/6571\/revisions\/10746"}],"up":[{"embeddable":true,"href":"https:\/\/afabego.fr\/en\/wp-json\/wp\/v2\/pages\/5477"}],"wp:attachment":[{"href":"https:\/\/afabego.fr\/en\/wp-json\/wp\/v2\/media?parent=6571"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}