pleurotus

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pleurotus

A chef carefully slices a fresh pleurotus mushroom on a wooden cutting board.

Definition

Noun 1. A genus of gilled mushrooms (family Pleurotaceae) characterized by white spores, caps that are often fan-shaped or shell-like, and a stem that is typically attached to the cap off-center (eccentric) or at the side (lateral). Many species in this genus are edible and some are commercially cultivated.

Usage
  • The term Pleurotus is used primarily in scientific, mycological (the study of fungi), and culinary contexts to classify and refer to a specific group of mushrooms.
  • It is often followed by a species name (e.g., ).
Examples
  • "The oyster mushroom, Pleurotus ostreatus, is one of the most commonly cultivated edible fungi in the world."
  • "Under the microscope, the white spore print confirmed it was a fungus from the genus Pleurotus."
  • "Foragers should learn to distinguish Pleurotus species from similar-looking, potentially toxic genera."
Advanced Usage
  • In taxonomy, Pleurotus is always capitalized and italicized when referring to the genus name.
  • The common name "oyster mushroom" almost always refers to a species within the genus, most notably .
Variants and Related Words
  • Pleurotus ostreatus (n.): The scientific name for the common oyster mushroom.
  • Pleurotus eryngii (n.): The scientific name for the king oyster mushroom.
  • Pleurotaceae (n.): The biological family to which the genus belongs.
  • Oyster mushroom (n.): The common name for several edible species.
Synonyms
  • Oyster mushroom (common name for key species)
  • Tree oyster (common name)
Notes on Meaning

The definition specifically highlights the eccentric or lateral stem and white spores as key identifying features. These mushrooms are often saprotrophic, meaning they decompose dead wood, and are known for their bracket-like or shelf-like growth habit on the sides of trees or logs.

pleurotus

A chef carefully slices a fresh pleurotus mushroom on a wooden cutting board.

Noun
  1. agarics with white spores and caps having an eccentric stem; an important mushroom of Japan

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