57 

 PTERIDOPHYTA. 



OPHIOGLOSSACEAE. 



OPHIOGLOSSUM L. 

 O. vulgatum L. f. I.* 

 Long Island, Hulst. ? 



BOTRYCHIUM Sw. 



B. simplex Hitch, f. 2. 



Suffolk : Miller and Young. 

 B. matricariaefolium A. Br. f. 4. 



Long Island, Hulst. 

 B. ternatum dissectum (Sp. ) Milde. f. 5. 



Queens : Richmond Hill, Hulst. Suffolk : Miller and Young. 



Var. obliquum (Muhl.) Milde. 



Queens: Richmond Hill.. Suffolk: Miller and Young. 

 B. Virginianium (L. ) Sw. f. 7. 



Frequent throughout the island. 



OSMUND ACE AE. 

 OSMUNDA L. 



O. regalis L. Royal Fern. f. 8. 

 Frequent throughout the island. 



O. cinnamomea L. Cinnamon Fern. f. 9. 



Common throughout the island. 



O. Claytoniana L. f. 10. 



Frequent throughout the island. 



POLYPODIACEAE. 

 ONOCLEA L. 



O. sensibilis L. Sensitive Fern. f. 14. 

 Common throughout the island. 



WOODSIA R. Br. 



W. Ilvensis (L.) R. Br. f. 16. 

 Long Island, W. Dunham. 



W. obtusa (Spreng. ) Torr. Woodsia. f 21. 



Suffolk: Greenport, 1861, Herb. L. I. Historical Society (H. S. ). 



DICKSONIA L'Her. 



D. punctilobula (Mx.) Gray. Dicksonia. f. 22. 



Kings : Cypress Hills, Hulst ; New Lots, Brainerd. Suffolk . 

 Miller and Young. 



* Figure numbers refer to the figures in Britton and Brown's " Illustrated Flora.' 



