Community find

False Parasol

Chlorophyllum molybdites

Group

gilled mushroom

Spore print

Green to dull olive-green

Size

Cap diameter 5-30 cm; Stipe length 5-25 cm, diameter 1-4 cm.

Season

Typically appears from summer to autumn, especialmente after heavy rains or periods of high humidity.

Habitat

Commonly grows in grassy areas such as lawns, parks, golf courses, and meadows. Frequently forms large 'fairy rings'.

Distribution

Widely distributed in subtropical and temperate regions globally; very common in North America and Australia.

Key characteristics

Large white cap with brownish scales (squamules) that concentrate toward the center. The gills start white but turn a distinctive greenish-gray as the spores mature. It has a tall, smooth stipe with a double-edged ring.

Fruiting body

Cap: Convex to flat, 5-30 cm wide, white surface covered in cinnamon-brown scales. Hymenophore: Free, crowded gills that turn dull green with age. Stipe: 5-25 cm long, smooth, white to brownish, with a thick, movable ring.

How to recognise it

A green spore print is the most definitive diagnostic feature. Look for the large size, brownish scales on a white cap, and the movable ring on the stem.

Look-alikes

Chlorophyllum rhacodes (Shaggy Parasol) - has white spores; Macrolepiota procera (Parasol Mushroom) - has a patterned stipe and white spores.

Ecological role

Saprophytic, breaking down organic matter in soil and grass.

Notes

This species is famous for being the most common cause of mushroom ingestion incidents in North America due to its close resemblance to popular edible parasols. It often forms perfect circles known as fairy rings.