Holloway, John E. (1939). "The Gametophyte, Embryo, and Young Rhizome of Psilotum triquetrum (Swartz)". Annals of Botany. 3 (2): 313–336. doi:10.1093/oxfordjournals.aob.a085063.
Manton, Irene (1942). "A Note on the Cytology of Psilotum with Special Reference to Vascular Prothalli from Rangitoto Island". Annals of Botany. 6 (2): 283–292. doi:10.1093/oxfordjournals.aob.a088408.
hathitrust.org
babel.hathitrust.org
Swartz, Olof (1801). Schrader, Heinrich Adolph (ed.). "Genera et species Filicum". Journal für die Botanik (Schrader). 2: 109. Retrieved 24 December 2016.