Definition

1. Noun:
   • A species of fungus: Cortinarius corrugatus is a specific type of mushroom belonging to the large genus Cortinarius.
   • Distinctive physical characteristics: It is characterized by a sticky (viscid), wrinkled (corrugated), tawny-colored cap. The stalk features a basal bulb that shrinks as the stalk grows longer. Its gills are initially dark violet but rapidly change to brown.

Usage Examples

• Noun:
  • We identified Cortinarius corrugatus in the pine forest based on its viscid, wrinkled cap.
  • The mycologist noted the distinctive color change in the gills of Cortinarius corrugatus, from violet to brown.

Advanced Usage

• Taxonomic Context: The name is used in scientific classification. The genus name refers to the partial veil (cortina) present on young mushrooms, and the species epithet describes the wrinkled cap.
  • The specimen was keyed out as Cortinarius corrugatus using a specialized mycological guide.

Variants and Related Words

• Cortinarius (n): The genus to which this species belongs, often called "webcaps" due to the cobweb-like cortina.
• Fungus (n): The broader biological kingdom.
• Mushroom (n): A common term for the fruiting body of a fungus.

Synonyms

• Webcap (fungus): A common name for fungi in the genus . (Note: This is a general term for the genus, not a direct synonym for this specific species).
• Agaric (n): A term for gilled mushrooms. (This is a broader morphological group).

Related Phrases / Terms

• Basal bulb: The swollen base of the stalk, a key identifying feature.
• Gill color change: The transition from dark violet to brown in the gills is a critical diagnostic characteristic for this species.

Noun

1. a fungus with a viscid wrinkled tawny cap; the stalk has a basal bulb that diminishes as the stalk elongates; the gills are dark violet at first but soon turn brown