Cortinarius hallowellensis

Cortinarius (10.3897-mycokeys.11.5409) Figure 2d

Cortinarius hallowellensis is a species of mushroom belonging to the large genus Cortinarius, which is part of the family Cortinariaceae. This genus is known for its diverse and often colorful species, many of which have a distinctive cobweb-like partial veil called a cortina, which is a key feature in identifying members of this genus. Cortinarius hallowellensis is one of the many species within this complex and ecologically significant group, contributing to the biodiversity of fungi in forest ecosystems.

Description

Cortinarius hallowellensis features the characteristic traits of its genus, including a cap, gills, stem, and the presence of a cortina during its early developmental stages. The specifics of its morphology, such as cap color, size, and shape, as well as spore print color, are crucial for its identification but vary among species within the Cortinarius genus.

Cap

The cap of Cortinarius hallowellensis is typically convex to flat as it matures, with colors that can range depending on specific environmental factors and age. The surface may be smooth or feature fine scales, and the margin often remains curved inward until maturity.

Gills

The gills are attached to the stem, spacing between them can be close or moderately spaced. They usually start out as a light color and darken with age due to the maturation of spores.

Stem

The stem of Cortinarius hallowellensis is cylindrical and may bear remnants of the cortina as a ring or zone of fine web-like fibers. The color and texture of the stem can provide additional clues for identification.

Spores

The spore print, a key feature for identifying many mushrooms, is typically rust-brown in Cortinarius species, including Cortinarius hallowellensis. The shape and size of the spores are also important diagnostic features.

Habitat and Distribution

Cortinarius hallowellensis is found in forested areas, forming mycorrhizal associations with trees. This symbiotic relationship is essential for the nutrient exchange between the fungus and its host plant, contributing to the health of forest ecosystems. The distribution of Cortinarius hallowellensis is not well-documented, but like many Cortinarius species, it is likely to be found in temperate forests, depending on suitable habitats and the presence of compatible tree species.

Ecological Role

As a mycorrhizal fungus, Cortinarius hallowellensis plays a crucial role in forest ecosystems. It helps in the nutrient cycling process, facilitating the transfer of minerals and water between the soil and its host plants. This relationship not only supports the growth and health of forest trees but also contributes to the overall biodiversity and stability of forest ecosystems.

Conservation

The conservation status of Cortinarius hallowellensis has not been extensively studied. However, like many fungi, its existence is threatened by habitat loss, pollution, and climate change. Conservation efforts for fungi are increasingly recognized as important for maintaining ecosystem health and biodiversity.