Entity:

Authorship

SN2000 author citation	:	(F. Hustedt, 1961 ex R. Simonsen, 1987) D.G. Mann, in F.E. Round et al., 1990
Unavailable original name	:	Hustedt, F. 1961.
Original name	:	Simonsen, R. 1987. Atlas Cat. Diat. Types Fr. Hustedt: 474.
Subsequent generic combination	:	Round, F.E., Crawford, R.M. & Mann, D.G. 1990. Cambridge University Press: App. I (p. 668). ("(Hustedt ex Simonsen) D.G. Mann, comb. nov.").
Original rank (within genus)	:	op. cit.: App. I (p. 668).
Original spelling	:	loc. cit.

Combinations

Basionym	:	*Navicula fracta* Hust. ex Simonsen (1987)		Ref: F.E. Round et al., 1990: App. I (p. 668). [new]
Former combination	:	*Navicula fracta* Hust. ex Simonsen (1987)		Ref: [Anonymous], [2003]: 15 Nov 2005.