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1 species
Cup fungi that develop partly underground as hollow balls and split open into star-like crowns with a violet inner surface. A 2024 study recognized at least eleven species, including at least seven in North America. European S. coronaria hyperaccumulates arsenic and has caused severe and fatal poisonings; North American specimens had much lower arsenic levels.
Fruitbody: hypogeous to semi-hypogeous hollow sphere opening by 5-10 rays. Hymenium: lilac to violet. Asci: amyloid tips. Spores: smooth, ellipsoid, often with two oil drops.
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