For Bommeria
Haufler, C.H. 1993. Bommeria. In Flora of North America Editorial Committee. 1993b. Flora of North America north of Mexico. Volume 2, pteridophytes and gymnosperms. Oxford Univ. Press, New York, NY. 475 pp. Google Scholar
McMillan, P.D., E.B. Pivorun, R.D. Porcher, C. Davis, D. Whitten, and K. Wade. 2018. Three remarkably disjunct fern species discovered in Pickens County, South Carolina. Phytoneuron 2018-21: 1-5. Published 25 April 2018. ISSN 2153 733X Google Scholar