Additions and Corrections to the Pteridophyte Flora of Chihuahua, Mexico

1. Selaginella mutica D. C. Eaton var. mutica Vicinity of Cerro Bola, Sierra del Paso del Norte (Juarez Mts.), on edge of the city of Juarez, Knobloch 2110 (MSC). This specimen was verified by Rolla M. Tryon, Jr. This addition, which is also new to Mexico, was reported by Knobloch (Amer. Fern J. 56: 36. 1966). In the same publication, new stations in Chihuahua were reported for S. pallescens (Presl) Spring and S. rupincola Underw. 2. Anemia tomentosa var. mexicana (Presl) Mickel As a result of John Mickel's work on the genus, we now add this taxon to our flora and eliminate A. anthriscifolia Schrad. The latter, according to a personal communication from Mickel, does not occur in Mexico. All specimens cited in our manual are to be referred to A. tomentosa var. mexicana.