Assertion: violet's date | /r/HasProperty | set as 1 january
Facets:
Source sentences:
text: The starting date of fungal taxonomy had been set as 1 January 1821, to coincide with the date of the works of the "father of mycology", the Swedish naturalist Elias Magnus Fries, which meant the name Cortinarius violaceus required sanction by Fries (indicated in the name by a colon) to be considered valid.