Dwarfs

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Dwarfs
Brown lumpy sclerotia (Collybia tuberosa)

Brown lumpy sclerotia ( Collybia tuberosa )

Systematics
Subdivision : Agaricomycotina
Class : Agaricomycetes
Subclass : Agaricomycetidae
Order : Mushroom-like (Agaricales)
Family : Knight relatives (Tricholomataceae)
Genre : Dwarfs
Scientific name
Collybia
( Fr. ) Perennial

The dwarf or sclerotia root ( Collybia  s. Str. , Syn. Microcollybia ) are a genus of fungi from the family of knight relatives that form quite small fruiting bodies and often fructify from lentil to pea-sized sclerotia .

The type species of the genus is the brown nubile sclerotia ( Collybia tuberosa ).

features

The species of this genus have a white or light cream-colored spore powder . The hat is whitish in color and has a thin, membranous consistency. The lamellas are whitish and quite high. They are crowded and have grown to become fully booked. The stem is cylindrical and significantly longer than the hat is wide. The sclerotia from which the fruiting bodies often grow are colored yellow, purple-brown or black.

The hyaline spores are never dextrinoid . They are ellipsoidal in shape and have a thin wall and a smooth surface. The cap skin consists of simple hyphae that are either pigment-free or contain an intracellular pigment. They lie parallel or are intertwined. The lamella trama is regular. The hyphae septa have buckles . The basidia are cylindrical-club-shaped, have four sterigms and a basal buckle.

ecology

The fruiting bodies appear gregarious. They often grow from sclerotia that the fungus creates on or near large mummified mushrooms.

species

The genus includes 3 species worldwide, all of which also occur in Europe. In the past, the grape-stalked sclerotia was also included, which today is the only species belonging to the genus Dendrocollybia .

Dwarfs ( Collybia ) worldwide
German name Scientific name Author quote
Silky sclerotia Collybia cirrhata (Persoon 1800) Quélet 1872
Yellow bulbous sclerotia Collybia cookei (Bresadola 1928) JD Arnold 1935
Brown lumpy sclerotia Collybia tuberosa (Bulliard 1791: Fries 1821) P. Kummer 1871

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literature

Individual evidence

  1. ^ A b Paul M. Kirk, Paul F. Cannon, David W. Minter, JA Stalpers: Dictionary of the Fungi . CABI Europe, Wallingford 2008, ISBN 978-0-85199-826-8 .
  2. Karen W. Hughes, Ronald H. Petersen, James E. Johnson, Jean-Marc Moncalvo, Rytas Vilgalys, Scott A. Redhead, Tiffany Thomas, Laura L. McGhee: Infragenic phylogeny of Collybia s. st. based on sequences of ribosomal ITS and LSU regions . In: Mycological Research . tape 105 , no. 2 , 2001, p. 164-172 , doi : 10.1017 / S0953756200003415 .

Web links

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