Abstract
polymorphic species; but, on the other hand, it is more than likely that several of its reputed synonyms will be found upon careful investigation to represent forms which are specifically distinct. Such a study is urgently needed. PELLAEA TERNIFOLIA (Cav.) Link. Collected from dry rocks, Ramsey Canyon, Huachuca Mountains, Arizona, August 23, 1910, Goodding 766. This also is a highly variable species which, as currently accepted, ranges from Texas to Argentina and occurs also in Santo Domingo and in the Hawaiian Islands. So far as the writer can find it has been known hitherto in the United States only from western Texas. The present specimens, which are unusually large, were distributed under the name Pellaea atropurpurea.
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