{"id":577,"date":"2026-02-18T20:07:29","date_gmt":"2026-02-18T19:07:29","guid":{"rendered":"https:\/\/xavier-montoy.com\/?page_id=577"},"modified":"2026-02-18T20:07:29","modified_gmt":"2026-02-18T19:07:29","slug":"gemma","status":"publish","type":"page","link":"https:\/\/xavier-montoy.com\/index.php\/gemma\/","title":{"rendered":"Gemma"},"content":{"rendered":"\n<div class=\"wp-block-group alignfull has-contrast-background-color has-background is-vertical is-layout-flex wp-container-core-group-is-layout-e1300cac wp-block-group-is-layout-flex\">\n<div class=\"wp-block-columns alignfull has-base-color has-contrast-background-color has-text-color has-background has-link-color wp-elements-36a22e47866c988458f26b48b1a8c7bc is-layout-flex wp-container-core-columns-is-layout-9c22b1e3 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-right:0;padding-left:0;flex-basis:55%\">\n<figure class=\"wp-block-image size-full\" style=\"margin-top:var(--wp--preset--spacing--50);margin-right:var(--wp--preset--spacing--50);margin-bottom:var(--wp--preset--spacing--50);margin-left:var(--wp--preset--spacing--50)\"><img loading=\"lazy\" decoding=\"async\" width=\"2048\" height=\"2560\" src=\"https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/Montoy_Xavier_Collier-Gemma_Zoom-scaled.jpg\" alt=\"\" class=\"wp-image-580\" srcset=\"https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/Montoy_Xavier_Collier-Gemma_Zoom-scaled.jpg 2048w, https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/Montoy_Xavier_Collier-Gemma_Zoom-240x300.jpg 240w, https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/Montoy_Xavier_Collier-Gemma_Zoom-819x1024.jpg 819w, https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/Montoy_Xavier_Collier-Gemma_Zoom-768x960.jpg 768w, https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/Montoy_Xavier_Collier-Gemma_Zoom-1229x1536.jpg 1229w, https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/Montoy_Xavier_Collier-Gemma_Zoom-1638x2048.jpg 1638w\" sizes=\"auto, (max-width: 2048px) 100vw, 2048px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--60);padding-right:var(--wp--preset--spacing--60);padding-bottom:var(--wp--preset--spacing--60);padding-left:var(--wp--preset--spacing--60)\">\n<h2 class=\"wp-block-heading has-text-align-center has-xx-large-font-size\">Gemma<\/h2>\n\n\n\n<p style=\"text-transform:none\"><em><em><em><em><em>Electrod\u00e9position de cuivre et or sur branche, sertissant un saphir brut de Ceylan.<\/em><\/em><\/em><\/em><\/em><\/p>\n\n\n\n<p class=\"has-medium-font-size\" style=\"padding-top:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);text-transform:none\">Du terme latin signifiant \u00e0 la fois bourgeon et pierre pr\u00e9cieuse, et qui donnera gemme\u00a0<br>Au XVI\u1d49 si\u00e8cle, \u00ab\u00a0gemme\u00a0\u00bb pouvait d\u00e9signer \u00e0 la fois un bourgeon v\u00e9g\u00e9tal et une pierre.<br>Aujourd\u2019hui, en botanique, on parle encore de gemmation pour la multiplication par bourgeon.<br>La gemme terminale, c\u2019est le bourgeon unique situ\u00e9 \u00e0 l\u2019extr\u00e9mit\u00e9 d\u2019un rameau.<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull has-contrast-background-color has-background has-x-large-font-size has-global-padding is-content-justification-center is-layout-constrained wp-block-group-is-layout-constrained\" style=\"margin-top:0;margin-bottom:0\">\n<div class=\"wp-block-jetpack-slideshow aligncenter\" data-autoplay=\"true\" data-delay=\"4\" data-effect=\"slide\" style=\"--aspect-ratio:calc(2048 \/ 2560)\"><div class=\"wp-block-jetpack-slideshow_container swiper-container\"><ul class=\"wp-block-jetpack-slideshow_swiper-wrapper swiper-wrapper\"><li class=\"wp-block-jetpack-slideshow_slide swiper-slide\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"2048\" height=\"2560\" alt=\"\" class=\"wp-block-jetpack-slideshow_image wp-image-581\" data-id=\"581\" data-aspect-ratio=\"2048 \/ 2560\" src=\"https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/Montoy_Xavier_Collier-Gemma-scaled.jpg\" srcset=\"https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/Montoy_Xavier_Collier-Gemma-scaled.jpg 2048w, https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/Montoy_Xavier_Collier-Gemma-240x300.jpg 240w, https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/Montoy_Xavier_Collier-Gemma-819x1024.jpg 819w, https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/Montoy_Xavier_Collier-Gemma-768x960.jpg 768w, https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/Montoy_Xavier_Collier-Gemma-1229x1536.jpg 1229w, https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/Montoy_Xavier_Collier-Gemma-1639x2048.jpg 1639w\" sizes=\"auto, (max-width: 2048px) 100vw, 2048px\" \/><\/figure><\/li><li class=\"wp-block-jetpack-slideshow_slide swiper-slide\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"1580\" height=\"1974\" alt=\"\" class=\"wp-block-jetpack-slideshow_image wp-image-582\" data-id=\"582\" data-aspect-ratio=\"1580 \/ 1974\" src=\"https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/pendentif-Guillian-Zoom-2.jpg\" srcset=\"https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/pendentif-Guillian-Zoom-2.jpg 1580w, https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/pendentif-Guillian-Zoom-2-240x300.jpg 240w, https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/pendentif-Guillian-Zoom-2-820x1024.jpg 820w, https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/pendentif-Guillian-Zoom-2-768x960.jpg 768w, https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/pendentif-Guillian-Zoom-2-1229x1536.jpg 1229w\" sizes=\"auto, (max-width: 1580px) 100vw, 1580px\" \/><\/figure><\/li><li class=\"wp-block-jetpack-slideshow_slide swiper-slide\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"1580\" height=\"1974\" alt=\"\" class=\"wp-block-jetpack-slideshow_image wp-image-584\" data-id=\"584\" data-aspect-ratio=\"1580 \/ 1974\" src=\"https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/pendentif-Guillian-bd.jpg\" srcset=\"https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/pendentif-Guillian-bd.jpg 1580w, https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/pendentif-Guillian-bd-240x300.jpg 240w, https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/pendentif-Guillian-bd-820x1024.jpg 820w, https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/pendentif-Guillian-bd-768x960.jpg 768w, https:\/\/xavier-montoy.com\/wp-content\/uploads\/2026\/02\/pendentif-Guillian-bd-1229x1536.jpg 1229w\" sizes=\"auto, (max-width: 1580px) 100vw, 1580px\" \/><\/figure><\/li><\/ul><a class=\"wp-block-jetpack-slideshow_button-prev swiper-button-prev swiper-button-white\" role=\"button\"><\/a><a class=\"wp-block-jetpack-slideshow_button-next swiper-button-next swiper-button-white\" role=\"button\"><\/a><a aria-label=\"Pause Slideshow\" class=\"wp-block-jetpack-slideshow_button-pause\" role=\"button\"><\/a><div class=\"wp-block-jetpack-slideshow_pagination swiper-pagination swiper-pagination-white\"><\/div><\/div><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Gemma Electrod\u00e9position de cuivre et or sur branche, sertissant un saphir brut de Ceylan. Du terme latin signifiant \u00e0 la fois bourgeon et pierre pr\u00e9cieuse, et qui donnera gemme\u00a0Au XVI\u1d49 si\u00e8cle, \u00ab\u00a0gemme\u00a0\u00bb pouvait d\u00e9signer \u00e0 la fois un bourgeon v\u00e9g\u00e9tal et une pierre.Aujourd\u2019hui, en botanique, on parle encore de gemmation pour la multiplication par bourgeon.La [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-577","page","type-page","status-publish","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/xavier-montoy.com\/index.php\/wp-json\/wp\/v2\/pages\/577","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xavier-montoy.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/xavier-montoy.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/xavier-montoy.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xavier-montoy.com\/index.php\/wp-json\/wp\/v2\/comments?post=577"}],"version-history":[{"count":1,"href":"https:\/\/xavier-montoy.com\/index.php\/wp-json\/wp\/v2\/pages\/577\/revisions"}],"predecessor-version":[{"id":585,"href":"https:\/\/xavier-montoy.com\/index.php\/wp-json\/wp\/v2\/pages\/577\/revisions\/585"}],"wp:attachment":[{"href":"https:\/\/xavier-montoy.com\/index.php\/wp-json\/wp\/v2\/media?parent=577"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}