| Not validly published name (nom. inval.) [ICBN/ICN, 2012: Arts. 32-45] |  | 
			Ref: 
				
					P.M. Kirk et al. (eds.), 2008. Dict. Fungi (ed. 10): 696.
			 | 
		
		
			| Pre-starting-point name (nom. inval.: "nom. praeinit.") [ICBN, 2018: Art. 13.1(e): Nostoc. Hetero. 1886] |  | 
				Ref: Donk, 1958: 245 ("'Nostocaceae heterocysteae'; starting-point date 1886-8"). |