Amanita jacksonii

Amanita jacksonii, commonly known as Jackson's Amanita, is a species of mushroom in the Amanitaceae family. This fungus is notable for its striking red cap and white gills and stem, making it a visually distinctive species within its genus. It is primarily found in eastern North America, thriving in both deciduous and mixed forests. This article provides an overview of its taxonomy, description, habitat, and edibility.

Taxonomy

The species was first described scientifically by mycologist R. Pomerleau in 1962. It belongs to the genus Amanita, which is known for containing both some of the most poisonous, as well as some of the most sought-after edible mushrooms. Amanita jacksonii is part of the Amanita caesarea complex, a group of mushrooms celebrated for their edibility and striking appearance.

Description

Amanita jacksonii features a bright red to orange cap that can range from 5 to 15 cm in diameter. The cap is smooth and becomes more flattened with age. Its gills are free from the stem, densely packed, and pure white. The stem, which can be 8 to 15 cm tall, is also white and bears a skirt-like annulus (ring). A distinctive white volva (cup-like structure) is present at the base of the stem, a common feature among many Amanita species.

Habitat and Distribution

This mushroom is predominantly found in eastern North America, from Canada down to Mexico. It favors hardwood forests, particularly those dominated by oaks and pines. Amanita jacksonii is a mycorrhizal fungus, forming symbiotic associations with the roots of living trees, which is essential for the nutrient exchange between the fungus and its host.

Edibility

Amanita jacksonii is considered an edible species, highly prized in some regions for its flavor. However, due to its resemblance to some toxic species of Amanita, such as Amanita muscaria and Amanita phalloides, extreme caution is advised when foraging. Only experienced mushroom foragers should attempt to harvest Amanita jacksonii, as misidentification can lead to severe poisoning or even death.

Conservation

As of the current knowledge, Amanita jacksonii does not face any immediate threats that would warrant conservation concern. However, like many fungi, its populations are susceptible to habitat loss due to deforestation and urbanization. Conservation of its natural habitat is essential for the sustenance of this species.

See Also

• Mycorrhiza
• Edible mushrooms
• Mushroom poisoning

Amanita jacksonii
Mycological characteristics
	gills on hymenium