Literature

Authors	Year	Title
J. J. Spies, Jonker A.	1987	Chromosome studies on African plants. 4
J. J. Spies, Klopper, K. C., Visser, B.	1999	Apomixis in the genus Pentaschistis (Arundinoideae)
J. J. Spies, E. Merwe, vandee, H. Plessis, D., Saayman, E. J. L.	1991	Basic chromosome numbers and polyploid levels in some South African and Australian grasses (Poaceae)
J. J. Spies, E. Merwe, vandee, H. Plessis, D., Saayman, E. J. L.	1991	Basic chromosome numbers and polyploid levels in some South African and Australian grasses (Poaceae)
J. J. Spies, H. Plessis D.	1987	Chromosome studies on African plants. 3
J. J. Spies, H. Plessis, D., Barker, N. P.	1990	Spies (1990)
J. J. Spies, Saayman, E. J. L., Voges, S. P., Davidse, G.	1989	Chromosome studies on African plants. 9. Chromosome numbers in Ehrharta (Poaceae:Ehrharta)
J. J. Spies, Troskie, T. H., van der Vyver, E., van Wyk, S. M. C.	1994	Chromosome studies on African plants. 11. The tribe Andropogoneae (Poaceae:Panicoideae)

1987

1999

1991