The Pteridophytes of Mexico

The pteridophytes of Mexico include 1008 species and 16 additional varieties or subspecies, a total of 1024 taxa in 124 genera. Keys, descriptions, distribution maps, and cited specimens are given for all species. Nearly all taxa are illustrated with line drawings. This treatment fills the gap between two other recent large floras, those for North America north of Mexico and for Mesoamerica, and spans the most diverse and latitudinally largest pteridophyte flora in the world. It weds the world’s richest dryland pteridoflora of northern Mexico and western United States with the rich wet forests of Mesoamerica, South America, and the West Indies. Forty new taxa are described and ten new combinations are made herein: Anemia jaliscana var. integrifolia Mickel, Asplenium arcanum A. R. Sm., A. dianae A. R. Sm., A. gentryi A. R. Sm., A. sanchezii A. R. Sm., A. sessilifolium var. occidentale A. R. Sm., A. ultimum A. R. Sm., A. venturae A. R. Sm., Botrychium tolucaense W. H. Wagner & Mickel, Cheilanthes apiacea Mickel, C. complanata var. interrupta Mickel, C. decurrens Mickel, C. longipila var. brevipila Mickel, C. maxoniana Mickel, C. spiculata Mickel, C. yatskievychiana Mickel, Ctenitis erinacea A. R. Sm., C. mexicana A. R. Sm., Dryopteris knoblochii A. R. Sm., Elaphoglossum erinaceum var. occidentale Mickel, E. leebrowniae Mickel, E. xanthopodum Mickel, E. yourkeorum Mickel, Lindsaea quadrangularis subsp. mexiae Mickel, Notholaena brachycaulis Mickel, N. brevistipes Mickel, N. meridionalis Mickel, Pecluma alfredii var. occidentalis A. R. Sm., Polypodium arcanum var. septentrionale Mickel, P. polypodioides var. knoblochianum Mickel, P. rzedowskianum Mickel, Selaginella barnebyana Valdespino, S. breedlovei Valdespino, S. hirtifolia Valdespino, S. polyptera Valdespino, S. prolifera Valdespino, Thelypteris loreae A. R. Sm., T. martinezii A. R. Sm., T. venturae A. R. Sm., and Woodsia cystopteroides Windham & Mickel. Ten new combinations are made: Asplenium semipinnatum (Hieron.) A. R. Sm., Astrolepis laevis (M. Martens & Galeotti) Mickel, Cheilanthes aurea var. palmeri (D. C. Eaton) Mickel, C. marsupianthes (Fe´e) Reeves ex Mickel, C. pringlei var. moncloviensis (Baker) Mickel, Pecluma alfredii var. cupreolepis (A. M. Evans) A. R. Sm., Pellaea ternifolia subsp. brandegeei (C. C. Hall) Mickel, Polypodium riograndense (T. Wendt) Mickel, Tectaria trichodes (C. V. Morton) A. R. Sm., and Thelypteris resinifera var. proxima (C. Chr.) A. R. Sm.