1.a	fruit body fleshy, naucoroid, stem substantial, with membranous annulus, mostly on wood	2
b	Fruit body thin, mycenoid, stem slender, mostly without annulus, on wood or soil or with moss	5
2.a	On soil, spores 7-9mm, ornamentation moderate, perispore moderate, cystidia simple	G. unicolour
b	On wood	3
3.a	Cystidia bifurcate or more divided, spores 8-10mm, ornamentation moderate, perispore moderate	G. patagonica
b	Cystidia simple	4
4.a	Spore ornamentation moderate, perispore moderate, spores 7- 9.5mm	G. marginata
b	Spore ornamentation low, perispore thin, spores 8-9.5mm	G. rudericola
5.a	Alpine, among Sphagnum, spores 10-12.5mm	G. oreophila
b	Not alpine, not with Sphagnum	6
6.a	Cystidia thick walled, metuloids, spores 10-11.5mm	G. nana
b	Cystidia thin walled	7
7.a	Stipe with annulus, usually fibrillar, spores 7.5-8.5mm
b	Stipe without annulus	8
8.a	Cystidia narrowly ventricose/lageniform; spores 8-9.5mm, >< elliptic	G. muscolignosa
b	Cystidia >< cylindric, spores 9.5-11mm, elliptic to almond shaped	G. neocalyptrata