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11,112 species in Delaware
Boltonia asteroides
Pyrenula subelliptica
Pyrola elliptica
Reticularia lycoperdon
Rhagium inquisitor
Rhepoxynius hudsoni
Rhododendron calendulaceum
Rhytisma acerinum
Ricciocarpos natans
Rubus laciniatus
Ruellia humilis
Sayornis saya
Scaphoideus obtusus
Schinia rivulosa
Schizura badia
Schoenoplectus subterminalis
Scirpus pendulus
Sclerodactyla briareus
Scleroderma citrinum
Scudderia furcata
Selene vomer
Septoria erigerontis
Septoria oenotherae
Septoria ribis
Shivaphis celti
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