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Schaffnerella Rediscovered! (Gramineae, Chloridoideae), J. Travis Columbus, Hester L. Bell, Rosa Cerros-Tlatilpa, M. Patrick Griffith, J. Mark Porter

Aliso: A Journal of Systematic and Floristic Botany

From 1876 to 1880 in San Luis Potosí, Mexico, J. G. Schaffner made the first collections of a small grass that later was named Schaffnerella gracilis (Chloridoideae). The monotypic genus apparently was not encountered again by botanists until 2001, when, during a targeted search, we discovered it in the Sierra de San Miguelito growing along the Río Potosino, ca. 6 air km southwest of the city of San Luis Potosí. Most of the 100-150 plants encountered along a 3-km stretch of the Río Potosino above the village of Escalerillas and reservoir EI Potosino were growing in a moist alluvium of …