Découverte dans l'Aude (Les Martys, Aude, France) de: Opegrapha reactiva (Alstrup et Hawksworth) Etayo et Diederich. Un champignon lichénicole non lichénisé très rare en France
International audience Opegrapha reactiva (Alstrup et Hawksw.) Etayo et Diederich is a lichenicolous fungus which parasitizes the thallus of Hymenelia lacustris (Wirth) Choisy, a hydrophilous siliceous saxicolous lichen found in the hills zone, montane zone and subalpine zone. It has been noticed in...
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Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | French |
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HAL CCSD
2014
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Online Access: | https://hal.science/hal-03766319 https://hal.science/hal-03766319/document https://hal.science/hal-03766319/file/Coste_Opegrapha%20reactiva_Carnetsnatures2014.1.pdf |
Summary: | International audience Opegrapha reactiva (Alstrup et Hawksw.) Etayo et Diederich is a lichenicolous fungus which parasitizes the thallus of Hymenelia lacustris (Wirth) Choisy, a hydrophilous siliceous saxicolous lichen found in the hills zone, montane zone and subalpine zone. It has been noticed in Chile, Greenland, United Kingdom and Luxembourg. In France, Opegrapha reactiva is very seldom : it had previously been noticed in the Aigoual mountain (Coste in Roux and al., 2007) and in the Eastern Pyrénées and Hautes-Pyrénées (Coste, 2012). This time, we found it in the biogegraphic region of the Massif-central-montagne-Noire (in the French department of Aude). Opegrapha reactiva (Alstrup et Hawksw.) Etayo et Diederich est un champignon lichénicole très rarement observé en France. Il parasite le thalle d'Hymenelia lacustris (With) Choisy, un lichen saxicole-calcifuge hydrophile, des étages collinéen, montagnard et subalpin. Il est connu du Chili, du Groenland, des îles Britanniques et du Luxembourg. En France, Opegrapha reactiva a été observé dans le massif de l'Aigoual (Coste dans Roux et al., 2007), dans les Pyrénées-Orientales et les Hautes-Pyrénées (Coste, 2012). La découverte de ce champignon lichénicole dans le domaine biogéographique du Massif-central-montagne-Noire du département de l'Aude (11, France) à une altitude de 739 m est une nouvelle station française. |
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