1. Adams, D.E., Perkins, W.E., Estes, J.R. 1981. Pollination systems in Paspalum dilatatum Poir. (Poaceae): an example of insect pollination in a temperate grass. Amer. J. Bot. 68: 389–394.
2. Andersen, S.T., Bertelsen, F. 1972. Scanning electron microscope studies of pollen of cereals and other grasses. Grana 12: 79–86.
3. Anton de Triquell, A. 1987. Grass gametophytes: their origin, structure, and relation with the sporophyte. In: Soderstrom, T.R., Hilu, K.W., Campbell, C.S., Barkworth, M.E. (eds.) Grass systematics and evolution. Washington, DC: Smithsonian Institution Press. pp. 11–20
4. Artschwager, E., McGuire, R.C. 1949. Cytology of reproduction in Sorghum vulgare. J. Agric. Res. 78: 659–673.
5. Bedinger, P., Russell, S.D. 1994. Gametogenesis in maize. In: Freeling, M., Walbot, V. (eds.) The maize handbook. New York: Springer. pp. 48–61