Wednesday, 15 February 2012

Velvet Rollrim

Facts
Common Name: 
Velvet Rollrim
Scientific Name: 
Tapinella atrotomentosa
Also Known As: 
Paxilllus atrotomentosus/Agaricus atrotomentosus
Cap Diameter (mm): 
12-280mm
Stem Height (mm): 
30-90mm
Stem Diameter (mm): 
20-50mm
Information
Description: 

A large, sometimes massive fungus with a brown cap, velvety stem, found growing solitary or in small tufts on rotten, often buried wood in coniferous woodland.

Distribution: 

Infrequent from late Summer to Autumn.

Habitat: 

Tufted on or near stumps or buried wood of conifers.

Cap: 

Initially convex, expanding and depressed with a persistently inrolled margin, finely downy then smooth with age.

Flesh: 

Cap flesh is  thick, cream coloured and firm. Stem flesh is solid and firm, buff or ochraceous. Odour and taste not distinctive.

Gills: 

Decurrent, crowded, brached close to the stem, giving a netted appearance, initially buff, ochraceous and spooted rust with age.

Stem: 

Initially olvaceous and finely downy, dark-brown and coarsely downy with age, stout, , eccentric.

Additional Notes: 

Habitat: On decayed wood of conifers, often Pinus spp. but also reported on Picea spp. Usually on large stumps or fallen trunks and occasionally at the base of living trunks. Notes: Rather common in Scotland where it is often abundant. Occasional but widespread elsewhere. Perhaps better known as Paxillus atrotomentosus. Ref: BC