| A classification for extant ferns AR Smith, KM Pryer, E Schuettpelz, P Korall, H Schneider, PG Wolf Taxon 55 (3), 705-731, 2006 | 2000 | 2006 |
| Horsetails and ferns are a monophyletic group and the closest living relatives to seed plants KM Pryer, H Schneider, AR Smith, R Cranfill, PG Wolf, JS Hunt, SD Sipes Nature 409 (6820), 618-622, 2001 | 738 | 2001 |
| Phylogeny and evolution of ferns (monilophytes) with a focus on the early leptosporangiate divergences KM Pryer, E Schuettpelz, PG Wolf, H Schneider, AR Smith, R Cranfill American journal of Botany 91 (10), 1582-1598, 2004 | 656 | 2004 |
| Phylogenetic relationships of extant ferns based on evidence from morphology and rbcL sequences KM Pryer, AR Smith, JE Skog American Fern Journal, 205-282, 1995 | 326 | 1995 |
| Thelypteridaceae AR Smith Pteridophytes and gymnosperms, 263-272, 1990 | 254 | 1990 |
| Introduction: Pediatric Social Work with Special Populations RB Smith, H Clinton Social Work in Health Care 21 (1), 1-3, 1995 | 252* | 1995 |
| Fern classification AR Smith, KM Pryer, E Schuettpelz, P Korall, H Schneider, PG Wolf Biology and evolution of ferns and lycophytes. Cambridge University Press …, 2008 | 251 | 2008 |
| Unraveling the phylogeny of polygrammoid ferns (Polypodiaceae and Grammitidaceae): exploring aspects of the diversification of epiphytic plants H Schneider, AR Smith, R Cranfill, TJ Hildebrand, CH Haufler, TA Ranker Molecular phylogenetics and evolution 31 (3), 1041-1063, 2004 | 240 | 2004 |
| Brazilian Flora 2020: innovation and collaboration to meet Target 1 of the Global Strategy for Plant Conservation (GSPC) FLR Filardi, F Barros, JFA Baumgratz, CEM Bicudo, TB Cavalcanti, ... Rodriguésia 69 (4), 1513-1527, 2018 | 185 | 2018 |
| Phytogeographic relationships between neotropical and African-Madagascan pteridophytes RC Moran, AR Smith Brittonia 53 (2), 304-351, 2001 | 157 | 2001 |
| New records of pteridophytes from Bolivia AR Smith, M Kessler, J Gonzales American Fern Journal, 244-266, 1999 | 152 | 1999 |
| Comparison of fern and flowering plant distributions with some evolutionary interpretations for ferns AR Smith Biotropica, 4-9, 1972 | 150 | 1972 |
| Phylogeny and evolution of grammitid ferns (Grammitidaceae): a case of rampant morphological homoplasy TA Ranker, AR Smith, BS Parris, JMO Geiger, CH Haufler, SCK Straub, ... Taxon 53 (2), 415-428, 2004 | 148 | 2004 |
| Phylogenetic Relationships and Evolution of Extant Horsetails, Equisetum, Based on Chloroplast DNA Sequence Data (rbcL and trnL-F) DL Des Marais, AR Smith, DM Britton, KM Pryer International Journal of Plant Sciences 164 (5), 737-751, 2003 | 148 | 2003 |
| Intrafamilial relationships of the thelypteroid ferns (Thelypteridaceae) AR Smith, RB Cranfill American Fern Journal 92 (2), 131-149, 2002 | 147 | 2002 |
| Dryopteridaceae KU Kramer, RE Holttum, RC Moran, AR Smith Pteridophytes and gymnosperms, 101-144, 1990 | 143 | 1990 |
| New records of pteridophytes for the flora of Peru AR Smith, B León, H Tuomisto, H van der Werff, RC Moran, M Lehnert, ... SIDA, Contributions to Botany, 2321-2342, 2005 | 124 | 2005 |
| rbcL data reveal two monophyletic groups of filmy ferns (Filicopsida: Hymenophyllaceae) KM Pryer, AR Smith, JS Hunt, JY Dubuisson American Journal of Botany 88 (6), 1118-1130, 2001 | 124 | 2001 |
| Serpocaulon (Polypodiaceae), a new genus segregated from Polypodium AR Smith, HP Kreier, CH Haufler, TA Ranker, H Schneider Taxon 55 (4), 919-930B, 2006 | 90 | 2006 |
| Is morphology really at odds with molecules in estimating fern phylogeny? H Schneider, AR Smith, KM Pryer Systematic Botany 34 (3), 455-475, 2009 | 88 | 2009 |
