Updates to Finnish aphyllophoroid funga (Basidiomycota): new species and range extensions

Abstract

The knowledge of Finnish aphyllophoroid funga has increased substantially in recent years. In this article we present six species new to Finland: Cristinia (cf.) rhenana Grosse-Brauckm., Hyphodontiella hauerslevii K.H. Larss. & Hjortstam, Leptosporomyces montanus (Jülich) Ginns & M.N.L Lefebvre, Osteina obducta (Berk.) Donk, Sebacina helvelloides (Schwein.) Burt, and Tulasnella brinkmannii sensu lato Bres. The finding of Osteina obducta is the first record in Northern Europe. The article also contributes new records of 56 nationally rare species (maximum ten previous records in Finland). Additionally, we list 110 regionally new species, found for the first time from a certain subzone of the boreal vegetation zones in Finland. Every record is enclosed with notes on the substrate. Furthermore, the ecology and distribution of rare species are discussed.

Aphyllophoroid funga (Basidiomycota) of Finland: range extensions and records of nationally new and rare species

“…Xenasma rimicola 3rd-4th New to Middle Boreal, Northern Carelia -Kainuu (3b). These are the fifth and sixth records of the species in Finland; previous records were from Finnström (1a), Geta (1a), Kirkkonummi (1b), and Toivakka (2b) [2,3].…”

“…The Finnish aphyllophoroid funga comprises 1,043 species [2,3] (also H. Kotiranta, unpubl. ), the majority of which are corticioids and polypores [2,4,5].…”

“…), the majority of which are corticioids and polypores [2,4,5]. A large body of knowledge on the occurrence and distribution of aphyllophoroid species has been accumulated after the first Finnish checklist [2], especially on polypores and corticioids, but also on clavarioids (e.g., [3][4][5][6][7][8][9][10][11]).…”

“…However, the occurrence and distribution of many aphyllophoroid species in Finland are still not adequately known; therefore, there are large gaps in the knowledge of their ecology, biogeography, substrata, and habitat requirements and their conservation status and accurate threat levels are difficult to evaluate. The main reasons for this (1)(2)(3)(4) and their subzones in Finland. 1a -Hemiboreal, Åland; 1b -Hemiboreal, Oak Zone; 2a -Southern Boreal, Southwestern Finland, and Southern Ostrobothnia; 2b -Southern Boreal, Lake District; 3a -Middle Boreal, Ostrobothnia; 3b -Middle Boreal, Northern Carelia -Kainuu; 3c -Middle Boreal, Southwestern Lapland; 4a -Northern Boreal, Kuusamo District; 4b -Northern Boreal, North Ostrobothnia; 4c -Northern Boreal, Forest Lapland; 4d -Northern Boreal, Fjeld Lapland.…”

“…This is the fourth record of the species in Finland; previous records were from Helsinki (1b), Tammisaari (1b), and Puolanka (3b) [2,3].…”