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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Bibliographic Details
Main Author: Coste, Clother
Other Authors: Conservatoire Botanique National des Pyrénées et de Midi-Pyrénées (CBNPMP), cbnpmp
Format: Article in Journal/Newspaper
Language:French
Published: HAL CCSD 2014
Subjects:
Lichenology
Montagne Noire
Aude
Opegrapha reactiva (Alstrup et Hawksw.)
Lichénologie
[SDE]Environmental Sciences
Découverte
Greenland
Noire
Groenland
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
Description
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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