共 4 条
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- [2] Austin D.F., Comments on infrageneric taxonomy in Ipomoea, Taxon, 28, pp. 359-361, (1979)
- [3] Austin D.F., Additional comments on infrageneric taxonomy in Ipomoea, Taxon, 29, pp. 501-502, (1980)
- [4] House H.D., The North American species of the genus Ipomoea, Ann. New York Acad. Sci., 18, pp. 181-264, (1908)