D. marginalis 
Plants 2-5 dm. or higher; leaves oblong-lanceolate, 
glaucous beneath; pinnae rather distant, subopposite, 12 
cm. or less in length, 3 cm. or less in width; pinnules 
short-stalked or sessile, oblong, acute or obtuse, pinnati- 
fid or nearly entire; sori marginal. 
In rocky woods. Summer. 
** Pinnules spinulose-dentate. 
8. D. Boottii (Tuckerm.) Underw. 
Aspidium Bootttt Tuckerm. 1843. Hovey’s Mag. 
9: 145. Haton, l.c. 2: 175. t. 69; inGray, Man. 
O87. 4G/7ie. lc. TAI. 
Dryopteris Boottit Underw. 1893. Nat. Ferns ed. 
Aeeta7 ed.<O114-. in ieE 11S san Brittle Ge 
16 
Nephrodium Boottit Waters, \. c. 221. 
- Boorr’s FERN. 
Plants 3-8 dm. high; leaves linear-lanceolate; lowest 
pair of pinnae triangular-ovate, 6 cm. more or less long, 
2 cm. or less wide at the base; the upper pinnae narrow- 
er, 7cm. or less long, acuminate; pinnules, except the 
basal pair of the lower pinnae, spinulose-dentate; the 
latter pinnules are somewhat pinnatifid; sori small. 
In moist woods. 
Fairfax Co. Va. W. Palmer. 
44 
