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4,118 species in Yellowstone National Park
Chaenotheca stemonea
Chaetocnema ordinata
Chaetophora tuberculosa
Chalcoscirtus alpicola
Chalcosyrphus depressus
Chaoborus albipes
Charadrius melodus
Stereocaulon rivulorum
Chenopodium leptophyllum
Chloealtis abdominalis
Chlorochroa uhleri
Chloroflexus aurantiacus
Chondrostereum purpureum
Chroogomphus rutilus
Chrysis nitidula
Chrysomphalina chrysophylla
Chrysopa coloradensis
Chyrandra centralis
Cicindela decemnotata
Sterna paradisaea
Cicurina robusta
Circinaria caesiocinerea
Cirsium flodmanii
Cirsium foliosum
Cladonia caespiticia
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