For Polemoniaceae
Grant, V. 1997. Nomenclature of subfamilies and tribes in the Polemoniaceae. Phytologia 83: 385-389.
Grant, V. 1998. Primary classification and phylogeny of the Polemoniaceae, with comments on molecular cladistics. Amer. J. Bot. 85: 741-752.
Prather, L.A., C.J. Ferguson, and R.K. Jansen. 2000. Polemoniaceae phylogeny and classification: implications of sequence data from the chloroplast gene ndhF. Amer. J. Bot. 87: 1300-1308.
Wilken. 2004. In Kubitzki, K., ed. 2004. The families and genera of vascular plants. VI. Flowering plants – Dicotyledons – Celastrales, Oxalidales, Rosales, Cornales, Ericales. Springer, Berlin. 489 pp.
Wilson, K.A. 1960a. The genera of Hydrophyllaceae and Polemoniaceae in the southeastern United States. J. Arnold Arb. 41: 197-212.
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