Hygrophorus eburneus

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Hygrophorus eburneus is a species of mushroom belonging to the family Hygrophoraceae. Commonly known as the ivory waxy cap or the cowboy's handkerchief, this mushroom is notable for its distinctive ivory to white color and its slimy cap and stem when wet. It is found in various parts of the world, primarily in temperate forests, where it forms mycorrhizal associations with hardwoods and conifers, facilitating nutrient exchange between the fungus and its host trees.

Description

Hygrophorus eburneus features a cap that ranges from 2 to 5 cm in diameter, initially convex before flattening out with age, often with a slight central depression. The cap surface is smooth and slimy, especially during wet conditions, and its color ranges from pure white to ivory. The gills are decurrent, meaning they extend down the stem, and are spaced moderately, with a waxy texture and the same color as the cap. The stem is 3 to 10 cm tall, cylindrical, and also slimy, with no ring. The flesh is white, thin, and has a mild taste and odor.

Habitat and Distribution

Hygrophorus eburneus is found in both deciduous and coniferous forests, thriving in moist soils rich in organic matter. It forms symbiotic relationships with trees, aiding in their nutrient absorption. This species has a wide distribution, occurring in North America, Europe, and parts of Asia. It typically fruits from late summer to late autumn, depending on local climate conditions.

Edibility

The mushroom is considered edible, though not highly regarded due to its slimy texture and lack of distinctive flavor. It is sometimes collected for consumption, but its culinary value is considered low compared to more popular edible mushrooms.

Conservation

Currently, there are no major threats to Hygrophorus eburneus, and it is not listed on any conservation red lists. However, like many fungi, it could be susceptible to habitat loss due to deforestation and changes in land use.

Cultural Significance

While not among the most well-known mushrooms, Hygrophorus eburneus has a certain appeal to mushroom enthusiasts and naturalists due to its unique appearance and the role it plays in forest ecosystems.

See Also

• Mycorrhiza
• Hygrophoraceae
• Edible mushrooms

Hygrophorus eburneus
Mycological characteristics
	gills on hymenium