- Dacrymycetaceae (2)
- Dakota County (Minn.) (67)
- Dakota County (Minn.)|ramsey County (Minn.) (1)
- Delesseriaceae (1)
- Dennstaedtiaceae (2)
- Dermateaceae (1)
- Desmarestiaceae (3)
- Dicksoniaceae (1)
- Dicranaceae (7)
- Dictyotaceae (1)
- Dioscoreaceae (2)
- Droseraceae (3)
- Dryopteridaceae (9)
- Dryopteridaceae (Thelephoraceae) (5)