Authors: Granmo, Alfred & Mathiassen, Geir
Journal: Karstenia, Volume 41 (2001), Issue 2, pages 37-48.
Doi: https://doi.org/10.29203/ka.2001.378
Full text: PDF
Key words: Albatrellus, Baltic region, distribution, ecology, Estonia, Europe, Fennoscandia, Finland, Norden, Norway, Sweden

Abstract: The immigration and establishment of Albatrellus syringae (Parmasto) Pouzar in Estonia, Finland, Sweden and Norway since it first appeared in 1901 is explained. The species is shown to be an example of a spontaneously expanding fungus in Fennoscandia, rising from anonymity in the first half of the 1900s to be annually recorded from new localities during the last three decades. It is now distributed in a majority of the provinces in each of the treated countries. Ecologically six different types of habitats have been recognized. In general the species profits by diverse ruderal sites, but is also found in undisturbed forest habitats. Its association with different woody species, including lilac (Syringa), appears purely accidental, and the fungus is stated to be a saprobe, perhaps also a root necrotroph. The history of dispersal of A. syringae in Fennoscandia and the Baltic region the past century is illustrated by distribution maps for consecutive periods.

Authors: Granmo, Alfred & Mathiassen, Geir
Journal: Karstenia, Volume 41 (2001), Issue 2, pages 49-54.
Doi: https://doi.org/10.29203/ka.2001.378
Full text: PDF
Key words: Albatrellus, distribution, ecology, Europe, North America, taxonomy

Abstract: A detailed study of the closely related Albatrellus syringae (Parmasto) Pouzar and A. peckianus (Cke.) Niemelä revealed differences in anatomy, which, in addition to those already known, may be of help in species determination. Thus the cutis of the cap, and the tissue structures of the stipe, can help in a more secure discrimination. Both species are saprobic, and A. syringae probably also can act as a root necrotroph. Albatrellus syringae, an expanding taxon in North Europe since the 1960s, has also emerged in southern Europe, in the Russian Far East, and in northern and western North America. Albatrellus peckianus seems to be an American endemism, distributed within the North American hardwood forests including the Great Lake Region. Both species are mapped on a world scale. Some vouchers from other parts of the world, claimed to be of A. peckianus, did not possess the anatomical features specific to it. Although resembling A. peckianus, orA. syringae, they represent taxa unknown to us.

Authors: Alekhina, Irina & Psurtseva, Nadezhda & Yli-Mattila, Tapani
Journal: Karstenia, Volume 41 (2001), Issue 2, pages 55-63.
Doi: https://doi.org/10.29203/ka.2001.379
Full text: PDF
Key words: Flammulina velutipes, Flammulina ononidis, Flammulina rossica, isozyne analysis

Abstract: Twenty-two dikaryotic Flammulina strains from different parts of Europe and the Far East were investigated using isozyme analysis. Clear isozyme polymorphism was detected in three enzymes, which differentiated the majority of Flammulinastrains from each other, except for two F. velutipes strains. In the NJ (Neighbor-Joining) analysis the Flammulina strains formed two main groups. Main group I included strains of F. velutipes while main group II included the strains of F. rossica/elastica along with F. ononidis and F. fennae. No clear correlation was found between the geographical origin and clustering of strains tested.