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1997; A. B. Doweld 2001). T. B. Patterson (1998), K. Kubitzki et al. (1990+, vol. 3), W. S. Judd et al. (1999), R. F. Thorne (2000), and T. B. Patterson

Verbatim text: Williams, N. H., M. W. Chase, T. Fulcher, and W. M. Whitten. 2001. Molecular systematics of the Oncidiinae based on evidence from four DNA

(Amaranthaceae). Sida 19: 931–974. Costea, M., A. Sanders, and G. Waines. 2001b. Notes on some little known Amaranthus taxa (Amaranthaceae) in the United

American works (e.g., B. E. Wofford 1981), splitting Arenaria is supported by morphological and molecular evidence (M. Nepokroeff et al. 2001). J. McNeill (1962)

(R. G. Olmstead et al. 2001; B. Oxelman et al. 2005). Leucophyllum zygophyllum I. M. Johnston is mapped in Hidalgo County, Texas (B. L. Turner et al. 2003);

nodes of fallen branches or possibly by suckering. J. C. Estill and M. B. Cruzan (2001) mentioned that P. morifolia is endemic to South Carolina, whereas it

taxonomic, reproductive, ecological, and evolutionary implications (S. Kelso 1992b; A. J. Richards 2003). When such clear distinction occurs in conjunction with

Hopper1999a M Muasya2001a Q Qiu1993a S Sheahan1996a S cont. Sheahan2000a Sosa2003a W Williams1994a Williams2001a Williams2001b Wurdack2005a Wurdack2005b

Verbatim text: Zomlefer, W. B., N. H. Williams, W. M. Whitten, and W. S. Judd. 2001. Generic circumscription and relationships in the tribe Melanthieae

W Williams1972a Williams2001a W cont. Williams2001b Z Zomlefer2001a

W Williams2001a W cont. Williams2001b

W Williams2001b Z Zomlefer2001a