Paradoxa (fungus)
Paradoxa is a genus of truffles in the family Tuberaceae. Originally described by the Italian botanist Oreste Mattirolo in 1935, the genus remained monotypic until a second species P. gigantospora was transferred from Tuber in 2009. A third species, P. sinensis, was also described, representing the second species from China. P. sinensis differs from P. gigantospora by having a somewhat smaller fruit body, and differs from P. monospora by having yellowish to yellow-brown ascomata. References

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Pezizales
Truffles (fungi)
Pezizales genera