Accepted By:
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Christenhusz, M. J. M., J. L. Reveal, A. Farjon, M. F. Gardner, R. R. Mill & M. W. Chase. 2011. A new classification and linear sequence of extant gymnosperms. Phytotaxa 19: 55–70.
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Steyn, E. M. A. & G. F. Smith. 1999. Welwitschiaceae. Sp. Pl.: Fl. World 3: 1–8.
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