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2,947 species in Isle Royale National Park
Salmo salar
Salticus scenicus
Sanguinaria canadensis
Sarcosoma globosum
Satyrium liparops
Saxifraga cespitosa
Scapania apiculata
Scapania curta
Scapania irrigua
Scapania lingulata
Schistidium confertum
Schistidium crassithecium
Schistidium robustum
Schistochilopsis incisa
Schizophyllum commune
Schoenoplectus pungens
Schoenoplectus tabernaemontani
Scirpus cyperinus
Scleranthus annuus
Scopula inductata
Scytinium pulvinatum
Scytinostroma odoratum
Sebacina schweinitzii
Sedum acre
Serromyia femorata
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