- Salino A, Almeida TE, Smith AR, Gomez AN, Kreier HP, Schneider H. 2008
- A new species of Microgramma (Polypodiaceae) from Brazil and recircumscription of the genus based on phylogenetic evidence.
- Sarvela J. 1978
- A synopsis of the fern genus Gymnocarpium.
- Schmidt-Lebuhn AN. 2011
- Fallacies and false premises—a critical assessment of the arguments for the recognition of paraphyletic taxa in botany.
- Schneider H, He L, Hennequin S, Zhang X-C. 2013
- Towards a natural classification of Pteridaceae: inferring the relationships of enigmatic pteridoid fern species occurring in the Sino-Himalaya and Afro-Madagascar.
- Schneider H, Kreier HP, Hovenkamp P, Janssen T. 2008
- Phylogenetic relationships of the fern genus Christiopteris shed new light onto the classification and biogeography of drynarioid ferns.
- Schneider H, Kreier HP, Wilson, E, Smith AR. 2006
- The Synammia enigma: evidence for a temperate lineage of polygrammoid ferns (Polypodiaceae, Polypodiidae) in Southern South America.
- Schneider H, Russell SJ, Cox CJ, Bakker F, Henderson S, Gibby M, Vogel JC. 2004a.
- Chloroplast phylogeny of asplenioid ferns based on rbcL and trnL and trnL-Fspacer sequences (Polypodiidae, Aspleniaceae) and its implications for the biogeography.
- Schneider H, Schuettpelz E, Pryer KM, Cranfill R, Magallón S, Lupia R. 2004b.
- Ferns diversified in the shadow of angiosperms.
- Schneider H, Smith AR, Cranfill R, Hildebrand, T, Haufler, CH, Ranker, T. 2004c.
- Unraveling the phylogeny of polygrammoid ferns (Polypodiaceae and Grammitidaceae): exploring aspects of the diversification of epiphytic plants.
- Schneller JJ. 1990a
- Azollaceae
- Schneller JJ. 1990b
- Salviniaceae
- Schuettpelz E, Chen CW, Kessler M, Pinson JB, Johnson G, Davila A, Cochran AT, Huiet L, Pryer KM. 2016
- A revised generic classification of vittarioid ferns (Pteridaceae) based on molecular, micromorphological, and geographic data.
- Schuettpelz E, Davila A, Prado J, Hirai RY, Yatskievych G. 2014
- Molecular phylogenetic and morphological affinities of Adiantum senae (Pteridaceae).
- Schuettpelz E, Pryer KM, Windham MD. 2015
- A unified approach to taxonomic delimitation in the fern genus Pentagramma (Pteridaceae).
- Schuettpelz E, Pryer KM. 2007
- Fern phylogeny inferred from 400 leptosporangiate species and three plastid genes.
- Schuettpelz E, Schneider H, Huiet L, Windham MD, Pryer KM. 2007
- A molecular phylogeny of the fern family Pteridaceae: assessing overall relationships and the affinities of previously unsampled genera.
- Schwartsburd PB, Prado J. 2016
- A Taxonomic revision of the South American species of Hypolepis (Dennstaedtiaceae), Part II.
- Schwartsburd PB, Prado J. 2015
- A Taxonomic revision of the South American species of Hypolepis (Dennstaedtiaceae), Part I.
- Sessa EB, Zimmer EA, Givnish TJ. 2012
- Phylogeny, divergence times, and historical biogeography of New World Dryopteris (Dryopteridaceae).
- Shao Y, Wei R, Zhang X, Xiang Q. 2015
- Molecular phylogeny of the cliff ferns (Woodsiaceae: Polypodiales) with a proposed infrageneric classification.
- Shinohara W, Nakato N, Yatabe-Kakugawa Y, Oka T, Kim JK, Murakami N, Noda H, Sahashi N. 2013
- The use of matK in Ophioglossaceae phylogeny and the determination of Mankyua chromosome number shed light on chromosome number evolution in Ophioglossaceae.
- Shmakov AI. 2015
- The new system of family Woodsiaceae.
- Sigel, EM, Windham MD, Haufler CH, Pryer KM. 2014
- Phylogeny, divergence time estimates, and phylogeography of the diploid species of the Polypodium vulgare complex (Polypodiaceae).
- Sigel, EM, Windham MD, Huiet L, Yatskievych G, Pryer KM. 2011
- Species relationships and farina evolution in the cheilanthoid fern genus Argyrochosma (Pteridaceae).
- Smith AR, Cranfill RB. 2002
- Intrafamilial relationships of the thelypteroid ferns (Thelypteridaceae).
- Smith AR, Kreier HP, Haufler CH,Ranker T, Schneider H. 2006a.
- Serpocaulon (Polypodiaceae), a new genus segregated from Polypodium.
- Smith AR, Pryer KM, Schuettpelz E, Korall P, Schneider H, Wolf PG. 2006b.
- A classification for extant ferns.
- Smith AR. 1995
- Non-molecular phylogenetic hypotheses for ferns.
- Smith AR. 1992
- A review of the fern genus Micropolypodium (Grammitidaceae).
- Smith AR. 1993
- Terpsichore, a new genus of Grammitidaceae (Pteridophyta).
- Smith AR. 1990
- Thelypteridaceae
- Smith, AR, Tejero-Diez D. 2014
- Pleopeltis (Polypodiaceae), a redefinition of the genus and nomenclatural novelties.
- Stuessy TF. 2009
- Plant Taxonomy: The Systematic Evaluation of Comparative Data
- Sun B-Y, Baek TG, Kim Y-D, Kim CS. 2009
- Phylogeny of the family Ophioglossaceae with special emphasis on genus Mankyua.
- Sundue M, Testo W. 2016
- Parapolystichum novoguineense (comb. nov.; Dryopteridaceae) from New Guinea.
- Sundue MA, Labiak PH, Mostacero J, Smith AR. 2012
- Galactodenia, a new genus of grammitid ferns segregated from Terpsichore (Polypodiaceae).
- Sundue MA, Parris BS, Ranker TA, Smith AR, Fujimoto EL, Zamora-Crosby D, Morden CW, Chiou W-L, Chen C-W, Rouhan G, Hirai RY, Prado J . 2014
- Global phylogeny and biogeography of grammitid ferns (Polypodiaceae).
- Sundue MA. 2010
- A monograph of Ascogrammitis, a new genus of grammitid ferns (Polypodiaceae).
- Sundue MA. 2013
- Mycopteris, a new neotropical genus of grammitid ferns (Polypodiaceae).