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59 adder's-tongue family species
Botrychium alaskense
Botrychium lineare
Sceptridium rugulosum
Botrychium pseudopinnatum
Botrychium pumicola
Botrychium acuminatum
Botrychium mormo
Botrychium tunux
Botrychium gallicomontanum
Ophioglossum petiolatum
Botrychium onondagense
Ophioglossum polyphyllum
Sceptridium jenmanii
Ophioderma pendulum
Ophioglossum azoricum
Ophioglossum pycnostichum
Ophioglossum reticulatum
Botrychium dusenii
Ophioderma falcatum
Botrychium boreale
Cheiroglossa palmata
Sceptridium ternatum
Ophioglossum crotalophoroides
Ophioglossum ellipticum
Ophioglossum vulgatum
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