Meijer, Andre A. R. De & Baird, Richard E. (1992). "Macromycetes from the state of Parana, Brazil: 3. Stipitate hydnums". Arquivos de Biologia e Tecnologia (Curitiba). 35 (4): 635–40. ISSN0365-0979.
Andrade, Rene H.; Chacon, Santiago; Sanchez-Vazquez, Jose E. (1996). "Study about the fungi (macromycetes) from three coffee plantations in Tapachula, Chiapas (Mexico)". Revista Mexicana de Micologia (in Spanish). 12: 79–88. ISSN0187-3180.