G. K.  Srivastava, Pant, D. D., and Shukla, P. K., ?The microspores of Isoetes coromandelina (Isoetaceae : Pteridophyta)?, Fern Gazette, vol. 15, no. 3, pp. 101 - 108, 1996.

K.  Al-Arid, Bray, R. D., and Musselman, L. J., ?Microspore wall morphogenesis of isoetes piedmontana (pfeiffer) reed?, International Journal of Plant Sciences, vol. 172, no. 7, pp. 856 - 861, 2011.

S.  Blackmore, Takahashi, M., Uehara, K., and Wortley, A. H., ?Development of megaspores and microspores in Isoetes japonica A. Br. (Lycopodiophyta: Isoetaceae)?, Grana, vol. 51, no. 2, pp. 84 - 96, 2012.