** Prunae acuminate. 
6. D. Clintoniana (D.C. Eaton) Dowell. PL; 
Aspidium cristatum Clintontanum D.C. Eaton, 
1867. in Gray, Man. ed. 5. 665. 
Dryopterts cristata Clintontana Underw. 1893. 
Nats Herns eds 40 mrs. 
D. Clintoniana Dowell, 1906. Proc. S.I. Assoc. 
Sen fA 
CrLINToON’s FERN. 
Plants 6-12 dm. high; pinnae ovate-lanceolate, deeply 
pinnatifid, 8-15 cm. long, sessile or stalked, spreading; 
lobes usually distant, oblong, cut-lobed or serrate; sori 
borne on the free veinlets near the -midvein of the lobes. 
In moist woods. 
Fairfax Co. Va. W. Palmer. 
Tit? Leaves 2-fpinnate to 3-pinnatifid. 
* Pinnules entire or crenate. 
7. D. marginalis (L.) A. Gray. 
_ Polypodium marginale L.\, ¢. 1091. 
Nephrodium marginale £. C. Rich. ; Michx. Fl. 
2207. Waters, 1. C1226. 
Aspidium marginale Sw. Syn. Fil. 50. Haton, |. 
c. 2:69. t. 55; in Gray, Man.ed. 6. 688. Clute, 
Ike 3 Acs 
Dryopterts marginalis A. Gray, 1848. Man. 632. 
Underw. in Ul. Fl. 1: 17; Nat. Ferns 113; in 
Britt. Man. 15. 
Woop FERN. 
43 
