For Pseudolycopodiella
Cook, K. 2015. Taxonomy of New World Pseudolycopiella. M.S. thesis, Miami Univ. Oxford, OH. Google Scholar
Haines, A.A. 2003a. The families Huperziaceae and Lycopodiaceae of New England: a taxonomic and ecological reference. V.F. Thomas Co., Bowdoin, ME. 100 pp. Google Scholar
Kramer, K.U., and P.S. Green. 1990. Pteridophytes and Gymnosperms. In K. Kubitzki, ed., The families and genera of vascular plants. Springer-Verlag, Berlin. Google Scholar
Øllgaard, B., M. Kessler, & A.R. Smith. 2018. Prodromus of a fern flora for Bolivia. II. Lycopodiaceae. Phytotaxa 334 (3): 255-294. Google Scholar
Øllgaard. 1990. In Kramer, K.U., and P.S. Green. 1990. Pteridophytes and Gymnosperms. In K. Kubitzki, ed., The families and genera of vascular plants. Springer-Verlag, Berlin. Google Scholar
Wagner, W.H., and J.M. Beitel. 1993. Lycopodiaceae. 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
Wikström, N., and P. Kenrick. 2000. Relationships of Lycopodium and Lycopodiella based on combined plastid rbcL gene and trnL intron sequence data. Systematic Bot. 25: 495-510. Google Scholar
Zhang & Iwatsuki. 2013. In FoC. Google Scholar