While true boletes are characterized by pores rather than blade-like gills on the underside of their caps, a bolete with a distinctive violet or purple pore surface and overall coloration that might be colloquially described as having "purple gills" is the Tylopilus plumbeoviolaceus, commonly known as the violet-grey bolete.
Understanding Bolete Anatomy
It is crucial to understand that members of the bolete family (Boletaceae) fundamentally differ from gilled mushrooms. Instead of gills, boletes feature a spongy layer of tubes that open to the underside of the cap as pores. Therefore, when discussing a "bolete with purple gills," one is most likely referring to a bolete species whose pore surface exhibits a violet or purplish hue.
The Violet-Grey Bolete: Tylopilus plumbeoviolaceus
The Tylopilus plumbeoviolaceus is a notable example that fits the description of a bolete exhibiting violet-grey coloration. This species was originally described in 1936 and was formerly classified as Boletus plumbeoviolaceus before being reclassified into the Tylopilus genus, which is part of the bolete family.
This fungus is distinguished by its unique appearance, which includes a violet-grey cap, stem, and particularly, a matching pore surface that becomes brownish with age.
Key Characteristics of Tylopilus plumbeoviolaceus
| Feature | Description |
|---|---|
| Common Name | Violet-grey bolete |
| Scientific Name | Tylopilus plumbeoviolaceus (formerly Boletus plumbeoviolaceus) |
| Family | Boletaceae (Bolete Family) |
| Distinguishing Feature | Known for its distinctive violet-grey hues, especially on its pore surface and stem, which can appear purplish. |
| First Described | 1936 |
| Geographic Distribution | It has a disjunct distribution, meaning it is found in geographically separated areas, specifically eastern North America and Korea. |
The Tylopilus plumbeoviolaceus is a prized find for mushroom enthusiasts due to its striking coloration and unique regional distribution. Its characteristic violet-grey appearance helps in its identification and differentiates it from many other bolete species.
Identifying Bolete Species
When attempting to identify bolete mushrooms, consider these key characteristics:
- Pore Surface Color: Note the color of the pores, which can range from white to yellow, red, brown, or purplish.
- Staining Reactions: Observe if the mushroom flesh or pore surface changes color (e.g., blue, brown, red) when cut or bruised.
- Cap and Stem Features: Examine the color, texture, and any patterns (like reticulation or netting) on the stem.
- Habitat and Mycorrhizal Associations: The types of trees a bolete grows near can be crucial for identification, as many form symbiotic relationships with specific tree species.
For more information regarding Tylopilus plumbeoviolaceus, you may consult further resources.
