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High incidence of the edible morel Morchella conica in a Jack Pine, Pinus banksiana, forest following prescribed burning

1993; Ottawa Field-Naturalists' Club; Volume: 107; Issue: 1 Linguagem: Inglês

10.5962/p.357087

0008-3550

Luc Duchesne, M. Weber,

Mycorrhizal Fungi and Plant Interactions

Mushrooms of the ascomycetous fungus Morchella conica Fr. were observed at a density as high as 2860 kg/ha in a Pinus banksiana Lamb.stand in May 1991 at the Petawawa National Forestry Institute, Chalk River, Ontario.This forest stand had been treated with prescribed fire the previous fall.Mushrooms were found singly or in clusters within a radius of 2-3 m around dead Pinus banksiana trees but not around dead specimens of Pinus resinosa Ait. and Pinus strobus L.On a observé des champignons ascomycétes Morchella conica Fr. 4 une densité aussi grande que 2860 kg/ha dans un peuplement de Pinus banksiana Lamb. a I'Institut national forestier de Petawawa en mai 1991 a Chalk River en Ontario.Ce peuplement forestier avait subi le brilage dirigé l'automne précédent.Les champignons ont été trouvés seuls ou en groupes uniquement a l'intérieur d'un rayon de 2-3 m autour de spécimens morts de Pinus banksiana mais pas autour de spécimens morts de Pinus resinosa Ait.et Pinus strobus L.