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  • Under Assessment
  • ENPreliminary Assessed
  • 4Assessed
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Lepiota brunneolilacea Bon & Boiffard

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Scientific name
Lepiota brunneolilacea
Author
Bon & Boiffard
Common names
Star Dapperling
Zandparasolzwam
IUCN Specialist Group
Mushroom, Bracket and Puffball
Kingdom
Fungi
Phylum
Basidiomycota
Class
Agaricomycetes
Order
Agaricales
Family
Agaricaceae
Assessment status
Preliminary Assessed
Preliminary Category
EN B2
Proposed by
Eef Arnolds
Assessors
Eef Arnolds
Comments etc.
Anders Dahlberg

Assessment Status Notes

Taxonomic notes


Why suggested for a Global Red List Assessment?

Lepiota brunneolilacea is a fairly large Lepiota species with a minutely scaly, vinaceous brown to lilac brown plieus of 30-75 mm and a sturdy stipe (20-80 x 8-15 mm) with a floccose annulus. It is one of the very few Lepiota species growing in yellow dunes near the sea-coast, the stipe base often deeply buried in sand. The species has a restricted range along the coasts of Western and Southern Europe and is only known from a few localities. The sites are potentially threatened by recreational development, artificial fixation of dune sand and, in the longer term, rising of the sea level. In view of the small, strongly fragmented area of occupancy and a continuing decline of the extant and quality of the habitat L. brunneolilacea is considered as endangered (B2).


Geographic range

South- and West-Europe, North-Africa: The coasts of Mediterranean Sea, North Sea and Baltic Sea.


Population and Trends

Lepiota brunneolilacea is only known from few localities within its limited distribution area, e.g. in Great-Britain only form Jersey (Legon & Henrici, 2006), in the Netherlands from two localities (Noordeloos et al., 2015), in Germany from one locality, in Italy from less than 10 localities (Onofri, 2006). The number of localities, including possible undiscovered localities, is estimated at a maximum of 80. The extant of occurence is larger than 100,000 km2; however the area of occupancy is smaller than 500 km2. Populations are small, usually consisting of 1-2 (max. 5) mycelia , and strongly fragmented, so probably the world population is less than 500 individuals. The occurrence on its sites is irregular. Figures on trends of this species are unknown, but there is a continuous loss of habitat and decrease of habitat quality, so we assume a decrease of the species.

Population Trend: Deteriorating


Habitat and Ecology

Lepiota brunneolilacea grows in dynamic, young, yellow dunes, often near Ammophila arenaria, occasionally also near scrub of Hippophae rhamnoides and near Quercus ilex. Apparently saprotrophic on buried organic matter.

Coastal Sand Dunes

Threats

Potential threats are: development of sandy coasts for recreational purposes; fixing of yellow dunes by planting of forest or Ammophila; in the longer term also increasing washing away of sites by sea level rising (climate change).

Tourism & recreation areas

Conservation Actions

Preservation of undisturbed, dynamic, sandy coasts.

Resource & habitat protection

Research needed

Monitoring of known sites may be useful to obtain a more detailed understanding of habitat requirements and population dynamics.

Life history & ecology

Use and Trade


Bibliography

Arnolds, E. & M. Groenendaal. 2004. Coolia 47: 49-51.
Bon, M. & J. Boiffard. 1972. Lépiotes des dunes Vendéennes. Bull. Soc. mycol. France 88: 15-28.
Candusso, M. & G. Lanzoni. 1990. Lepiota s.l. Fungi Europaei 4.
Legon, N.W. & A. Henrici. 2005. Checklist of the British & Irish Basidiomycota.
Onofri, S. (ed.). 2005. Checklist dei funghi italiani.
Vaessen, A., M. Noordeloos & H. Snater. 2015. Paddenstoelenparadijs witte duinen. Coolia 58: 63-70.


Known distribution - countries

Regional Population and Trends

Country Trend Redlisted