Accepted By:
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Hartman, R. L. & B. E. Nelson. 1998. Novelties from North America north of Mexico: A 20-Year Vascular plant Diversity Baseline. 1–51 (mss.).
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Wendt, T. 1980. Notes on some Pleopeltis and Polypodium species of the Chihuahuan Desert region. Amer. Fern J. 70(1): 5–11.
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