Biological species and morphological characteristics of Armillaria mellea Complex in Hokkaido: A. ostoyae and A. bulbosa
1992
Cha, J.Y. (Hokkaido Univ., Sapporo (Japan). Faculty of Agriculture) | Sung, J.M. | Igarashi, T.
The different morphological forms of Armillaria mellea (Vahl; Fr.) Kummer complex collected in Hokkaido were found to be composed of four intersterility groups or biological species by using all pairwise combinations with three single spore isolates of each fruit-body. Two of them, intersterility groups I and II, were identified by mating test with European and North American biological species as tester strains corresponding to two species, Armillaria ostoyae and Armillaria bulbosa, respectively. They are described and their occurrence and ecology documented
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