Lichenomphalia

Notes

Small yellow or orange mushrooms common amongst moss in swampy areas. The smooth cap is characteristically sunken in centre, gills extending down stalk. No ring on stalk. Spore print white.
Lichenised, associated with an alga, although the algal partner is restricted to near the base of the stalk. Common in Sphagnum bogs, especially at high altitudes.
Other small, soil-inhabiting mushrooms with sunken caps and decurrent gills include Omphalina and Clitocybe. The various genera can be distinguished only using microscopic features.

 

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Images		NZFungi Entry

Lichenomphalia alpina
A yellow form.
An orange form. Young, partly-opened mushroom growing amongst algal cells of the lichen partner.

Lichenomphalia umbellifera