4 species
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Ascobolus carbonariusburn site shield cup
Description: Fruitbody 3-6 mm wide, rounded and cup-shaped when young, becoming shallowly cup-shaped when mature, stalkless; inner surface greenish at first, soon becoming brown and finally purple-brown, conspicuously dotted by the ends of protruding asci; outer surface coarsely scurfy, yellowish green at first, soon becoming dark brown.
Substrate: Burned ground
Spores: Spring, summer, and fall