''Psilocybe liniformans'' is a mushroom in the family

Hymenogastraceae The Hymenogastraceae is a family of fungi in the order Agaricales with both agaric and false-truffle shaped fruitbodies. Formerly, prior to molecular analyses, the family was restricted to the false-truffle genera. The mushroom genus '' Psilo ...

. It is in the section Semilanceatae of ''

Psilocybe ''Psilocybe'' ( ) is a genus of gilled mushrooms, growing worldwide, in the family Hymenogastraceae. Many species contain the Psychedelic drug, psychedelic compounds psilocybin and psilocin. Taxonomy Taxonomic history A 2002 study of the ...

''.

Description

The stipe of ''Psilocybe liniformans'' is 5.5-7.5 cm long. The cap is 4.5-7.5 cm wide. The latter is initially pointed bell-shaped and flattens with age. The red-brown, glossy cap fades to the edge of yellow-brownish. The lamellae are yellowish brown to dark yellowish brown. The spore print is brown to dark brown. The cylindrical and full-length grooved stipe is pale yellow. In the upper third of the stipe carries a whitish ring. The stipe and cap may colour blue when damaged.

Similar species

''Psilocybe liniformans'' is

phylogenetically In biology, phylogenetics () is the study of the evolutionary history of life using observable characteristics of organisms (or genes), which is known as phylogenetic inference. It infers the relationship among organisms based on empirical data ...

a close relative of

Psilocybe fimetaria ''Psilocybe fimetaria'' is a dung-loving mushroom in the genus ''Psilocybe''. Along with '' Psilocybe fuscofulva'', it is one of two ''Psilocybe'' mushroom species that has been found to contain no detectable levels of the psychoactive tryptami ...

. Not only do they often grow in the same habitat, but they are macroscopically similar. The best way to differentiate the species by testing for the presence of separable gelatinous threads running along the bottom of the gills. This feature indicates ''Psilocybe liniformans''.

Habitat and distribution

''Psilocybe liniformans'' has been found growing in the Netherlands, England and some other nearby European countries. It grows exclusively from herbivore dung, usually that of horses, and often fruits gregariously.

References

{{Taxonbar, from=Q15633879 liniformans Taxa named by Gastón Guzmán Fungus species