31. Botrychium lanceolatum. (Gmel.) Angstroem.
BOTRYCHIUM ANGUSTISEGMENTUM. (Pease and Moore.) Fernald.
32. BOTRYCHIUM DISSECTUM. Spreng.
Botrychium obliquum var. dissectum. (Spreng.) Clute.
33. Botrychium obliquum. Muhl.
BOTRYCHIUM DISSECTUM var. OBLIQUUM. (Muhl.) Clute.
34. Botrychium lunaria. (L.) Sw.
35. Botrychium ramosum. (Roth.) Aschers.
Botrychium matricariæfolium. A. Br.
Botrychium neglectum. Wood.
36. Botrychium simplex. E. Hitchcock.
37. Botrychium ternatum. (Thunb.) Sw. Var. intermedium. D.C. Eaton.
Botrychium obliquum var. intermedium. (D.C. Eaton.) Underw.
38. Botrychium virginianum. (L.) Sw.