Generic short diagnoses:
Large, bright yellow, stipitate operculate discomycetes with ornamented spores and downy, often paler base. On soil and debris.
Species example:
Sowerbyella imperialis - DK: æggegul rodbæger - young specimens
The picture originates from the MycoKey 2.0 DVD. Here you will also find a larger picture along with a detailed generic description, references and an interactive, synoptical key to genera.