CHECKLIST OF THE FERNS OF 
NORTHEASTERN AMERICA. 
(NORTH OF THE GULF STATES AND EAST OF THE 
ROCKY MOUNTAINS.) 
ADIANTUM L. 
Adiantum Capillus- Veneris L. 
Adiantum pedatum L. 
ASPIDIUM Sw. 
Aspidium Boottii Tuckerm. 
Dryopterts Boott7d Underw. 
Aspiditum cristatum Sw. 
Dryopteris cristata A, Gray. 
Aspidiwm cristatum Clintonianum D. C. Eaton. 
Dryopteris cristata Clintontana Underw. 
Aspidium cristatum x» Marginale Dav. 
Aspidium filisc-imas Sw. 
Dryopterts filtx-mas Schott. 
Aspidium fragrans Sw. 
Dryopterts fragrans Schott. 
Aspidium Goldieanum Hook. 
Dryopterts Goldieana A. Gray. 
Aspidium Goldieanum f. celsum Palmer. 
Aspidium marginale Sw. 
Dryopter’s marginalis A, Gray. 
Aspidium Noveboracense Sw. 
Dryopterts Noveboracensis A, Gtay. 
Aspidium Noveboracense f. fragrans Peck. 
Aspidium simulatum Dav. 
Dryopteris stmulata Dav. 
