apothecium

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apothecium

[¦ap·ə¦thēsh·əm]
(mycology)
A spore-bearing structure in some Ascomycetes and lichens in which the fruiting surface or hymenium is exposed during spore maturation.
References in periodicals archive ?
Thallus yellow to orange, apothecial disk orange to orange brown, margin orange to yellow; spores 9.
Thallus black, yellow, yellow gray, apothecial disk orange, margin yellow to yellow gray; spores 9.
The dull waxy yellow apothecial disk with a white pruinose rim are good field indicators.