Cortinarius austrovenetus

Cortinarius austrovenetus is a species of mushroom belonging to the large genus Cortinarius, which is part of the family Cortinariaceae. This particular species is notable for its distinctive greenish-blue coloration on the stipe (stem) and the presence of a cortina, a web-like veil that is a characteristic feature of many mushrooms in the genus Cortinarius. The specific epithet "austrovenetus" refers to its southern (austro) and veined or venous (venetus) appearance, highlighting its unique features among its counterparts.

Description

Cortinarius austrovenetus mushrooms exhibit a cap that ranges in color from brown to dark olive, often with a slightly viscid surface during wet conditions. The cap typically measures between 4 to 8 cm in diameter and has a convex to broadly convex shape, sometimes developing a central depression with age. The gills are adnate to emarginate, initially pale before turning a rusty brown as the spores mature. The stipe is notable for its striking greenish-blue coloration, which can fade to yellowish or brownish hues with age or upon handling. It measures 4 to 10 cm in height and 1 to 2 cm in thickness, often with a bulbous base.

The presence of a cortina, a cobweb-like partial veil, is a defining characteristic of this species during its young developmental stages. This veil remnants can sometimes be observed on the stipe as a ring zone. Spores of Cortinarius austrovenetus are broadly ellipsoid, smooth, and possess a rusty brown color in mass.

Habitat and Distribution

Cortinarius austrovenetus is primarily found in southern regions, often in association with Eucalyptus forests and woodlands. It forms mycorrhizal relationships with these trees, facilitating nutrient exchange and contributing to the health of the forest ecosystem. The species is predominantly encountered in Australia and New Zealand, reflecting its preference for temperate to subtropical climates.

Edibility

The edibility of Cortinarius austrovenetus is unknown, and it is strongly advised to avoid consumption. Many species within the genus Cortinarius are known to contain toxins, some of which can cause serious harm or even be lethal. Without comprehensive chemical analysis and identification, it is prudent to err on the side of caution and not consume wild mushrooms without expert guidance.

Conservation

As of the current knowledge, there is no specific conservation status assigned to Cortinarius austrovenetus. However, like many fungi, its existence is closely tied to the health of its habitat, particularly Eucalyptus forests. Conservation efforts aimed at preserving these ecosystems indirectly support the survival of this and many other mycorrhizal fungi species.

See Also

• Mycorrhiza
• Cortinarius
• Eucalyptus