NC, Smokies, 20060605
CabinCove, twayblade area, various.

Mycena murina-group? []

On 3-4" rotting hardwood on cut-off trail past twayblades, in open flat before creek.
GEN small delicate mushroom, loosely clumped on med-size rotting downed hardwood limb
ST 30x1.8mm, hollow, lt tan fading almost white at the top, smooth, fragile, d short white mycelial pubesc at v base
CAP 20mm wide, cream white edge to lt brown center w faint concentric lter rings and prom translucent radial striations nearly to center, broad conical never fully flattening out (and becoming ragged before then), smooth
FLESH greyish watery, thin
GILL white, unbr, 3 per mm, deeply notched, white shiny sprinkling visible at 30x (spores)
SPORE print white
By process of elimination in Arora, this is the "catch-all" at the end of the key.

Collybia "brown blotched smooth dimpled job"

On ground on cut-off trail past twayblades, past creek on open shady flat hemlock area.
GEN med size mushroom, small loose clumps, on ground
ST 35x2mm, bulbous base, yellish brown fading sl lter ab, smooth, yellish mycelial fuzz at v base holding leaf debris together, hollow, tough, flexible but not splitting when bent
CAP 30mm, flat, wavy, lt sl yellowish brown, lter at edge, dker in center, irreg lter patterned "bleach" spots in incomplete broad concentric rings, sl striate around edge
FLESH yellowish, watery, 1mm
GILL 5-6 per mm, lt tan, unbr, 2mm wide, deeply notched
SPORE print white?
I appear to have found some more near Mary-Wanda spring on 20060614.