BioStor
 | Fragmente zur Mykologie (IX. Mitteilung, Nr. 407 bis 467) (1909) Sitzungsber. K. Akad. Wiss., Math.-Naturwiss. Kl. 118: 1461-1552 |
 | Porto Rican fungi, old and new F L Stevens (1917) Trans. Illinois State Acad. Sci 10: 162-218 |
 | Biology of some Coleoptera of the families Colydiidae and Bothrideridae Craighead F C. (1920) Proceedings of the Entomological Society of Washington 22: 1-13 |
 | The genera of Fagaceae in the southeastern United States T S Elias (1971) Journal of the Arnold Arboretum 52: 159-195 |