Validate: XHTML ¤ CSS

Xerula

Field characters

Pileus: convex to planar, smooth to tomentose, dry to viscid, usually brown to gray in color
Annulus: absent
Stipe: very long with a long tapering "root"
Stature: Tricholomatoid, Collybioid
Ecology: saprophyte (or parasite?) on soil

Micro characters

Basidiospores: large, lemon-shaped, inamyloid.
Hyphae: inamyloid, with or without clamp connections.
Cystidia: cheilo- and pleurocystidia usually present
Spore Print: white or cream
Lamellae: adnexed
Lamellar Trama: subregular

Notes

The long tapering "root" is the critical factor. Take care in removing the specimen from the ground.

Bessette et al., 1997 state that until recently these mushrooms were lumped into Collybia radicata or Oudemansiella radicata. He recognizes 4 species in Xerula.
The common X. furfuracea (Peck) Redhead, Ginns & Shoemaker (sensu Roody, 2003) is the species I have illustrated. Neither Singer, 1986, Arora, 1986 , McKnight and Knight, 1987 nor Largent and Baroni, 1988 recognize the genus Xerula. Bessette et al., 1997, Barron, 1999 and Roody, 2003 use Xerula. Singer recognizes Xerula as a subgenus of Oudemansiella. So, be aware that there are two names floating around out there for the same genus. I have no idea, which is correct, but I chose to use Xerula.

n.b. A truly mysterious statement is made by Largent and Largent and Baroni, 1988. They say…"some authors would place Tricholomopsis platyphylla in Oudemansiella…". I wonder if they meant Megacollybia?

www.mycokey.com add … "In Dict. Fungi claimed to be an obligate synonym of Oudemansiella - obviously not true."