One new and one rare species of Entoloma from the Norwegian nature reserve Holmvassdalen
2014
One new and one rare species in Entoloma subgenus Leptonia, viz.: E. holmvassdalenense, sp. nov., and E. sublaevisporum, are described from a Norwegian nature reserve. Macro- and microscopic-al descriptions, drawings of microscopical features and colour photographs are provided. Zusammenfassung: Eine neue und eine seltene Art der Gattung Entoloma Untergattung Leptonia, namlich E. holmvassdalenense, sp. nov., und E. sublaevisporum, werden aus einem norwegischen Naturreservat beschrieben. Die beiden Arten werden mit makro- und mikroskopischen Bescreibungen, Mikrozeichnungen und mit Farbabbildungen dokumentiert. In Holmvassdalen Nature Reserve situated in Nordland County, northern Norway, one new and one rare species of Entoloma were found in the period 2008-2013. The nature reserve is about 60 km 2 large and was protected by the Ministry of Environment in December 2008. The findings of Entoloma occurred in connection with fieldwork related to recording of red-listed species in the area, and were carried out by JOSTEIN LORAS and SIW ELIN EIDISSEN, with permission from the county governor. Up to the present day more than 120 red-listed species of fungi are recorded in Holmvassdalen according to the Norwegian Red List (KALAS & al. 2010), of which 37 are of the genus Entoloma. The first author provided microscopy of a high number of dried specimens and by this effort the new and the rare species were ascertained, in combination with DNA-sequencing. The study of microscopic characters indicated several new and rare Entoloma species. Two species belonging to subgenus Leptonia are reported in this paper. The localities have in common different ecological features like calcareous bedrock, humidity and vegetation. A reasonable estimate of the annual rain- and snowfall will be 1300-1400 mm (LORAS & EIDISSEN 2011). The lower and northern part of the Nature Reserve, 160-300 m s. m., where most recordings were done, is characterized by old spruce calcareous forest (Picea abies) with some birch (Betula) and alder (Alnus incana). In the upper part, 300-500 m. s. m., old pine forest (Pinus sylvestris) and birch and spruce dominate with occasional touches of willow (Salix caprea) and rowan (Sorbus aucuparia). Several localities are highly nutritious, with
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