Hygrocybe virginea
| Hygrocybe virginea | |
|---|---|
 | |
| Conservation status | |
| Least concern | |
| Scientific classification | |
| Kingdom: | Fungi |
| Division: | Basidiomycota |
| Class: | Agaricomycetes |
| Order: | Agaricales |
| Family: | Hygrophoraceae |
| Genus: | Hygrocybe |
| Species: | H. virginea |
| Binomial name | |
| Hygrocybe virginea (Wulfen) P.D. Orton & Watling (1969) | |
| Synonyms | |
|
Agaricus virgineus Wulfen (1781) | |
Hygrocybe virginea is a species of agaric (gilled mushroom) in the family Hygrophoraceae. It has been given the recommended English name of snowy waxcap in the UK.[1] The species has a largely north temperate distribution, occurring in grassland in Europe and in woodland in North America and northern Asia, but is also known from Australia. It typically produces basidiocarps (fruit bodies) in the autumn.
Taxonomy
The species was first described in 1781 by the Austrian mycologist Franz Xaver von Wulfen as Agaricus virgineus. It was subsequently combined in a number of different genera, before being transferred to Hygrocybe in 1969. The specific epithet comes from Latin "virgineus" (= pure white).[2] Hygrocybe nivea, first described by the Italian mycologist and naturalist Giovanni Antonio Scopoli in 1772, was sometimes distinguished by producing smaller and more slender fruit bodies than H. virginea, but is now regarded as a synonym.[3]
Molecular research published in 2011, based on cladistic analysis of DNA sequences, suggests that Hygrocybe virginea does not belong in Hygrocybe sensu stricto and should be moved to the genus Cuphophyllus.[4] As of December 2011, however, this has not been widely adopted.[3][5][6]
Description
Basidiocarps are agaricoid, up to 75 mm (3 in) tall, the cap convex at first, becoming flat or slightly depressed when expanded, up to 75 mm (3 in) across. The cap surface is smooth, waxy when damp, hygrophanous and somewhat translucent with a striate margin, white to ivory (rarely with ochre to brownish tints). The lamellae (gills) are waxy, cap-coloured, and decurrent (widely attached to and running down the stipe). The stipe (stem) is smooth, cylindrical or tapering to the base, cap-coloured, and waxy when damp. The spore print is white, the spores (under a microscope) smooth, inamyloid, ellipsoid, about 7.0 to 8.5 by 4.5 to 5.0 μm.[3]
The species is sometimes parasitized by the mould Paecilomyces marquandii, which colours the lamellae violet.[3]
Similar species
Hygrocybe russocoriacea is very similar in appearance, but can be distinguished in the field by its strong smell of sandalwood. Hygrocybe berkeleyi is also similar, but fruit bodies are typically larger and non-hygrophanous (it has sometimes been considered a white form of Hygrocybe pratensis).[3]
Distribution and habitat
The snowy waxcap is widespread throughout the north temperate zone, occurring in Europe, North America, and northern Asia, and has also been recorded from Australia.[7] Like other waxcaps, it grows in old, unimproved, short-sward grassland (pastures and lawns) in Europe, but in woodland elsewhere. Recent research suggests waxcaps are neither mycorrhizal nor saprotrophic but may be associated with mosses.[8]
Conservation
In Europe, Hygrocybe virginea is typical of waxcap grasslands, a declining habitat due to changing agricultural practices. Hygrocybe virginea is one of the commonest species in the genus and is not considered to be of conservation concern (unlike most other waxcaps).[3] In 1997, the species was featured on a postage stamp issued by the Faeroe Islands.
See also
References
- ↑ "Recommended English Names for Fungi in the UK" (PDF). British Mycological Society. Retrieved 2011-12-28.
- ↑ Rea C. (1922). British Basidiomycetaceae: A Handbook of the Larger British Fungi. Cambridge, UK: Cambridge University Press. p. 799.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 Boertmann D. (2010). The genus Hygrocybe (2nd ed.). Copenhagen: Danish Mycological Society. p. 200. ISBN 978-87-983581-7-6.
- ↑ Babos M, Halász K, Zagyva T, Zöld-Balogh Á, Szegő D, Bratek Z. (2011). "Preliminary notes on dual relevance of ITS sequences and pigments in Hygrocybe taxonomy". Persoonia 26: 99–107. doi:10.3767/003158511X578349.
- ↑ "Cuphophyllus virgineus". Index Fungorum. CAB International. Retrieved 2011-12-28.
- ↑ "Cuphophyllus virgineus". MycoBank. International Mycological Association. Retrieved 2011-12-28.
- ↑ [0.s=20&c[0].p=0&c[0].o=3345120 "Hygrocybe virginea"]. GBIF. Retrieved 2011-12-28.
- ↑ Seitzman BH, Ouimette A, Mixon RL, Hobbie EA, Hibbett DS. (2011). "Conservation of biotrophy in Hygrophoraceae inferred from combined stable isotope and phylogenetic analyses". Mycologia 103 (2): 280–290. doi:10.3852/10-195.