Yellowing Cup Peziza succosa Berk. (illustrated 60% life size) Cup 2–5cm across, cup-shaped, expanding to shallowly cup-shaped or even somewhat disc-like, margin sometimes somewhat lobed, sessile; inner surface grey-brown with a slight olivaceous tint, outer surface whitish, greyish, or yellowish. Flesh whitish, yielding yellow juice that stains cup edges and flesh; thin. Spores 17–22×9–12¼, ellipsoid, warty, ridged, containing 2 large oil drops. Asci 350×18¼. Habitat on damp soil in woods; summer. Occasional. Not edible.