elf-cup

elf-cup

n
(Plants) any of various cup-shaped ascomycetous fungi of the order Pezizales, often strikingly coloured, such as the orange-peel elf-cup (Aleuria aurantia), which is bright orange inside and dirty white outside, and the scarlet elf-cup (Sarcoscypha coccinea)
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014