Wagner, W. H., Moran, R. C. & Werth, C. R. 1993–2014: Aspleniaceae Newman. Speenworth family, 6: 228-245. – In: Anónimo (ed.), Flora of North America north of Mexico

Title	Aspleniaceae Newman. Speenworth family
Authorship	Wagner, W. H., Moran, R. C. & Werth, C. R.
In book	Anónimo (ed.) 1993–2014: Flora of North America north of Mexico
Pages	6: 228-245