Anthocerotaceae (Gray) Dumort.
Aspiromitus hirticalyx Steph. , legitimate, scientific
Stephani, F. (1916), Species Hepaticarum 5: 966 [tax. nov.]
Duff, R.J., Villarreal, J.C., Cargill, D.C. & Renzaglia, K.S. (2007), Progress and challenges toward developing a phylogeny and classification of the hornworts. The Bryologist 110(2): 241 [basionym]
basionym of: Phaeomegaceros hirticalyx (Steph.) Duff, J.C.Villarreal, Cargill & Renzaglia legitimate