Cyclocybe aegerita

Cyclocybe aegerita
Growing on a poplar stump in Girona, Spain
Scientific classification
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Tubariaceae
Genus: Cyclocybe
Species:
C. aegerita
Binomial name
Cyclocybe aegerita
(V. Brig.) Vizzini 2014
Cyclocybe aegerita
Mycological characteristics
Gills on hymenium
Spore print is brown
Edibility is choice but not recommended

Cyclocybe aegerita, also called Agrocybe cylindracea, Agrocybe aegerita or Pholiota aegerita,[1] is a species of fungus in the genus Cyclocybe. It is commonly known as the poplar fieldcap, poplar mushroom,[1] or velvet pioppini (simplified Chinese: 茶树菇; traditional Chinese: 茶樹菇; pinyin: chá shù gū; lit. 'Tea Tree Mushroom').[2] In Japan, it is called Yanagi-matsutake (柳松茸).[3]

It is a white rot fungus with a cap up to 10 centimetres (4 inches) wide. Although it resembles some poisonous species, it is edible and cultivated in some countries.

Description

The mushroom is a medium-sized agaric having a very open and convex cap, almost flat, with a diameter of 3–10 centimetres (1–4 inches).[4] Underneath, it has numerous whitish radial plates adherent to the foot, later turning to a brownish-grey colour, and light elliptic spores of 8–11 by 5–7 μm. The white fibre foot is generally curved, having a membranous ring on the top part which promptly turns to tobacco colour due to the falling spores.[1] When very young, its colour may be reddish-brown and later turn to a light brown colour, more ochre towards the centre, whiter around its border.

It is difficult to identify and some species in the genus are poisonous.[4]

Habitat

It is a white rot fungus growing in tufts on logs and holes in poplars, as well as other large-leaved trees.[1]

Uses

The mushroom is edible[5] but resembles some deadly species.[4] It is a typical ingredient found in both Southern European and Chinese cuisine. In East Asia, it is used fresh and rehydrated in various dishes, including stir fry, soup, stew, and hot pot.[2]

It is cultivated in Korea, Japan, China, and Australia.[4] In traditional Chinese medicine, it is often used as a diuretic.[6]

Along with Mycetinis alliaceus and Chondrostereum purpureum, it is suitable for counteracting olive-mill wastewater plant toxicity.[7]

References

  1. ^ a b c d Mariano García Rollán, Cultivo de setas y trufas, pg. 167, MUNDI-PRENSA (2007), ISBN 84-8476-316-1 (in Spanish)
  2. ^ a b Zhu, Maggie. "Tea Tree Mushroom (茶树菇)". Omnivore's Cookbook. Archived from the original on 2025-01-18. Retrieved 2025-10-23.
  3. ^ ヤマギマツタケ(柳松茸):特徴と主な産地や旬の時期
  4. ^ a b c d "Agrocybe aegerita, Chestnut mushroom, Yanagimatsutake". MedicalMushrooms.net. Archived from the original on 2016-06-05. Retrieved 3 August 2016.
  5. ^ Arora, David (1986) [1979]. Mushrooms Demystified: A Comprehensive Guide to the Fleshy Fungi (Second ed.). Berkeley, California: Ten Speed Press. p. 470. ISBN 978-0-89815-169-5.
  6. ^ Ying, J.Z., Mao, X.L., Ma, Q.M., Zong, Y.C. and Wen, H.A. 1987. Icons of Medicinal Fungi from China (Transl. Xu, Y.H.), Science Press, Beijing.
  7. ^ Reina, Rocío; Liers, Christiane; García-Romera, Inmaculada; Aranda, Elisabet (February 2017). "Enzymatic mechanisms and detoxification of dry olive-mill residue by Cyclocybe aegerita, Mycetinis alliaceus and Chondrostereum purpureum". International Biodeterioration & Biodegradation. 117: 89–96. doi:10.1016/j.ibiod.2016.11.029.