{"id":3874,"date":"2023-05-18T13:30:11","date_gmt":"2023-05-18T11:30:11","guid":{"rendered":"https:\/\/lecompagnonrouge.fr\/?p=3874"},"modified":"2023-07-18T20:33:23","modified_gmt":"2023-07-18T18:33:23","slug":"arum-italicum-gouet-ditalie","status":"publish","type":"post","link":"https:\/\/lecompagnonrouge.fr\/?p=3874","title":{"rendered":"Arum italicum. Gouet d’Italie."},"content":{"rendered":"\n

Il s’agit presque simplement d’une hypoth\u00e8se.<\/p>\n\n\n\n

Beaucoup de caract\u00e9ristiques morphologiques de ce gouet ont un petit c\u00f4t\u00e9 facultatif.<\/p>\n\n\n\n

On prendra notamment en faveur de cette hypoth\u00e8se, sur la premi\u00e8re photo, le nombre de feuilles assez important. Le Gouet d’Italie pr\u00e9sente 4 \u00e0 9 feuilles contre 3 \u00e0 5 pour le Gouet tachet\u00e9. <\/a><\/p>\n\n\n\n

Il y a surtout 2 fleurs (1-3 fleurs: Gouet d’Italie; 1 fleur: Gouet tachet\u00e9<\/a>).<\/p>\n\n\n\n

Photo ci-dessous: une feuille, au moins, a des lobes me semblant fortement divergents. Ce que ne peut pr\u00e9senter l’Arum tachet\u00e9<\/a>. En outre le spadice est tr\u00e8s clair (l’arum d’Italie peut \u00eatre r\u00e9put\u00e9 pr\u00e9senter un spadice tr\u00e8s clair).<\/p>\n\n\n\n

Enfin, la massue florale est jaune. Il peut arriver cependant que des Arums tachet\u00e9s<\/a> pr\u00e9sentent des massues de cette couleur.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Pour rappel, l’Arum italicum est id\u00e9alement identifiable lorsqu’il pr\u00e9sente 2-3 fleurs, des feuilles vein\u00e9es de blanc, des feuilles au nombre de 6 \u00e0 9, et une massue claire.<\/p>\n\n\n\n

L’arum d’Italie peut ne pas pr\u00e9senter son veinage habituel; Il peut rarement \u00eatre tachet\u00e9 de sombre. L’Arum tachet\u00e9<\/a>, pr\u00e9sente, moins de feuilles mais il peut rarement pr\u00e9senter une massue clair, et peut ne pas pr\u00e9senter de t\u00e2ches \u00e0 ses feuilles.<\/p>\n\n\n\n

Jauzein indique dans la flore d’Ile de France que les Arums d’Italie que l’on trouve de mani\u00e8re spontan\u00e9e, plus facilement que l’Arum tachet\u00e9<\/a>, lors de nos promenades plus rapidement limit\u00e9es aux zones anthropis\u00e9es, est d’origine horticole (au moins pour l’IDF). Qu’ils peuvent parfois avoir perdu des caract\u00e9ristiques horticoles (par r\u00e9gression). <\/p>\n\n\n\n

Jauzein indique encore que les 2 arums se partagent les m\u00eames endroits, qu’il ne peut \u00eatre exclu l’hybridation mais que celle-ci ne peut \u00eatre confirm\u00e9e que par la chromosomie.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Alismatales<\/a>>Araceae<\/a>>Arum<\/a> italicum<\/p>\n\n\n\n

Sous-bois herbac\u00e9e anthropis\u00e9s, ourlets eutrophiles.<\/p>\n\n\n\n

Lieu(x) o\u00f9 la plante est photographi\u00e9e: sud de la Creuse<\/p>\n","protected":false},"excerpt":{"rendered":"

Il s’agit presque simplement d’une hypoth\u00e8se. Beaucoup de caract\u00e9ristiques morphologiques de ce gouet ont un petit c\u00f4t\u00e9 facultatif. On prendra notamment en faveur de cette hypoth\u00e8se, sur la premi\u00e8re photo, le nombre de feuilles assez important. Le Gouet d’Italie pr\u00e9sente 4 \u00e0 9 feuilles contre 3 \u00e0 5 pour le Gouet tachet\u00e9. Il y a…<\/p>\n","protected":false},"author":1,"featured_media":3875,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[252,717],"tags":[716,715],"class_list":["post-3874","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-araceae","category-arum-italicum","tag-arum-ditalie","tag-gouet-ditalie"],"yoast_head":"\nArum italicum. 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