Harrison KA. (1961). The Stipitate Hydnums of Nova Scotia. Publications of the Department of Agriculture Canada (Report). Vol. 1099. Ottawa, Canada: Research Branch, Canada Department of Agriculture. pp. 1–60.
Parfitt D, Ainsworth AM, Simpson D, Rogers HJ, Boddy L (2007). "Molecular and morphological discrimination of stipitate hydnoids in the genera Hydnellum and Phellodon". Mycological Research. 111 (7): 761–77. doi:10.1016/j.mycres.2007.05.003. PMID17681224.
Ainsworth AM, Parfitt D, Rogers HJ, Boddy L (2010). "Cryptic taxa within European species of Hydnellum and Phellodon revealed by combined molecular and morphological analysis". Fungal Ecology. 3 (2): 65–80. doi:10.1016/j.funeco.2009.07.001.
Parfitt D, Ainsworth AM, Simpson D, Rogers HJ, Boddy L (2007). "Molecular and morphological discrimination of stipitate hydnoids in the genera Hydnellum and Phellodon". Mycological Research. 111 (7): 761–77. doi:10.1016/j.mycres.2007.05.003. PMID17681224.