Psathyrella ammophila
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Psathyrella ammophila | |
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Scientific classification | |
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Species: | P. ammophila
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Binomial name | |
Psathyrella ammophila | |
Synonyms | |
Psathyrella ammophila | |
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Gills on hymenium | |
Cap is campanulate or flat | |
Hymenium is adnate | |
Stipe is bare | |
Spore print is blackish-brown | |
Ecology is saprotrophic | |
Edibility is inedible |
Psathyrella ammophila is a species of fungus in the Psathyrellaceae family and is found throughout Europe. Commonly known as the dune brittlestem, it primarily grows on sand dunes near marram grass. It feeds saprotrophically on the decaying grasses. The season of growth is June to November.
P. ammophila is variable in appearance, changing colour and shape during its lifespan. Initally bell-shaped and tan or pale brown, the cap gradually flattens and darkens, becoming dark brown with a depressed shape as it ages.[1]
Taxonomy
Psathyrella ammophila was first described in 1868 by Michel Charles Durieu de Maisonneuve and Joseph-Henri Léveillé in one of Durieu de Maisonneuve's publications on the flora and fauna of Algeria, Exploration scientifique de l'Algérie: Sciences naturelles, botanique. They gave it the scientific name Agaricus ammophilus. The species was identified and described a further five times under different names, until 1960, when the botanist P.D. Orton gave the definitive classification in the journal Transactions of the British Mycological Society (now Fungal Biology).[2]
The genus name Psathyrella is a diminutive form of Psathyra, derived from the Greek word meaning "friable", psathuros (ψαθυρος). This name, like the common name brittlestem for many of the Psathyrella species, is related to the fragile nature of the cap and stem. The specific epithet ammophila (am-mó-phi-la) originates from the Greek words ammos (ἄμμος), meaning sand, and phillia (ϕιλος), meaning lover, a reference to the mushroom's sand dune habitat.
References
- ^ Jordan, Michael (2004). The Encyclopaedia of Fungi of Britain and Europe. Frances Lincoln Ltd. p. 237. ISBN 9780711223790.
- ^ Orton, P.D. (1960). "New check list of British Agarics and Boleti, part III (keys to Crepidotus, Deconica, Flocculina, Hygrophorus, Naucoria, Pluteus and Volvaria)". Transactions of the British Mycological Society. 43 (2). British Mycological Society: 159–439. doi:10.1016/S0007-1536(60)80065-4.