POLYPODIACEAE 57 



N. J. Rare and very local in Gloucester, Ocean and Monmouth 

 counties, thence increasing northward; not recorded from the 

 pine-barrens. 

 Pa. Throughout the range. 



Tertiary, o: Cretaceous, rare: Older Formations, increasing north- 

 ward. 117-220 days. Sea level-4,020 ft. 



13. D. Dryopteris (L.) Britton. In moist woods and thickets: 

 Newf. and Lab. to Alask., south to Va., Kan., Colo, and Ore. 

 Also in Greenland, Eu. and Asia. 



Conn. Rare over most of the state, increasing northwestward. 

 N. Y. Reported from, but doubtfully on L. I., otherwise recorded 



only from the Catskills. 

 N. J. From Hunterdon, Somerset and Union counties, north- 

 ward; also at " Calico " in the pine-barrens, but surely there 

 adventive. Rare and local. 

 Pa. Throughout the area, except in Chester, Delaware and 

 Philadelphia counties, there not recorded. 



Tertiary, o: Cretaceous, o: Older Formations, increasing north- 

 ward. 1 17-189 days. Sea leveI-3,000 ft. 



The following hybrids have been described and are to be looked 

 for wherever, in our range, both the supposed parents occur: 

 Dryopteris Clintoniana X Goldieana Dowell. 

 Dryopteris Clintoniana X intermedia Dowell. 

 Dryopteris Clintoniana X marginalis Slosson. 

 Dryopteris Clintoniana X spinulosa Benedict. 

 Dryopteris cristata X Goldieana Benedict. 

 Dryopteris cristata X intermedia Dowell, = D. Boottii. 



(Tuckenn.) Underw. 

 Dryopteris cristata X marginalis Davenport. 

 Dryopteris cristata X spinulosa (Milde) C. Chr. 

 Dryopteris Goldieana X intermedia Dowell. 

 Dryopteris Goldieana X marginalis Dowell. 

 Dryopteris Goldieana X spinulosa Benedict. 

 Dryopteris intermedia X marginalis Benedict. 

 Dryopteris marginalis X spinulosa Slosson. 



8. Anchistea Presl. 

 1. A. virginica (L.) Presl. Inswamps, often in deep water : N.S. to 

 Ont. and Mich., south to Fla., La. and Ark. Also in Bermuda. 

 Throughout the range, rare in the north, increasing southward, 

 specially in the pine-barrens. 



