| 21. | It was circumscribed by German botanist Julius von Flotow in 1851.
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| 22. | The genus was circumscribed by Japanese mycologist Kanesuke Hara in 1913.
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| 23. | The genus was circumscribed by mycologist Frank Lincoln Stevens in 1927.
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| 24. | The genus was circumscribed by English mycologist Derek Reid in 1964.
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| 25. | It was circumscribed by Dutch mycologist Marinus Anton Donk in 1930.
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| 26. | It was circumscribed by American mycologist Sanford Myron Zeller in 1939.
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| 27. | The genus was circumscribed by mycologist Andrew Price Morgan in 1802.
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| 28. | The genus was circumscribed by French botanist Camille Montagne in 1843.
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| 29. | The genus was circumscribed by Swiss mycologist Victor Fayod in 1889.
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| 30. | The genus was circumscribed by Czech mycologist Zdenek Pouzar in 1990.
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