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23 stonewort species
Nitella tenuissima
Nitella flexilis
Nitella clavata
Nitella opaca
Nitella furcata
Nitella acuminata
Nitella confervacea
Nitella hyalina
Nitella blankinshipii
Nitella transilis
Nitella intermedia
Nitella mucronata
Nitella oligospira
Nitella pseudoflabellata
Nitella capillaris
Nitella translucens
Nitella macounii
Nitella axillaris
Nitella praelonga
Nitella wahlbergiana
Nitella syncarpa
Nitella cernua
Nitella gracilis
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