Cerioporus squamosus

Cerioporus squamosus, commonly known as the paddy straw mushroom, is a species of polypore fungus that belongs to the family Polyporaceae. This mushroom is widely recognized for its distinctive features and ecological role in forest ecosystems. It plays a crucial part in the decomposition of wood, contributing to nutrient cycling and forest health.

Description

Cerioporus squamosus mushrooms are characterized by their large, fan or oyster-shaped caps, which can range from 5 to 25 cm in diameter. The cap surface is typically scaly, giving rise to the common name "scaly polypore", and varies in color from pale yellow to brown. The underside of the cap features numerous small pores, which house the spore-producing structures. The stalk, when present, is off-center and shorter than the diameter of the cap.

Habitat and Distribution

This species is commonly found in temperate regions across the Northern Hemisphere, including parts of North America, Europe, and Asia. Cerioporus squamosus prefers deciduous forests, especially those dominated by oak and beech trees, where it grows on dead or dying wood. It can be found on logs, stumps, and even on living trees where it acts as a weak parasite.

Ecological Role

As a saprotrophic organism, Cerioporus squamosus plays a vital role in breaking down the cellulose and lignin in dead wood, facilitating nutrient recycling in forest ecosystems. Occasionally, it may also exhibit parasitic behavior on weakened or injured trees, contributing to the natural culling of forest stands.

Culinary and Medicinal Use

While not widely known for its culinary value, some cultures do utilize Cerioporus squamosus as a food source. However, its taste and texture are not as highly prized as other edible mushrooms. There is ongoing research into the medicinal properties of this fungus, including its potential antioxidant and anti-inflammatory effects.

Conservation

Currently, Cerioporus squamosus is not considered to be at risk. It is a common species with a wide distribution. However, like many fungi, it could be affected by changes in forest management practices, pollution, and climate change. Conservation efforts aimed at preserving forest ecosystems indirectly support the survival of this and many other species of fungi.

Cerioporus squamosus
Mycological characteristics
	pores on hymenium
	cap is flat
	hymenium attachment is not applicable
	lacks a stipe
	spore print is white
	ecology is saprotrophic
	edibility: edible