1, Pe aquilinum var, pubescens.Underwe Fronds 1-5-2.5 m, tall, from a stout 
stipe, fuscous at base, straw-colored and Sulcate above, shorter than the 
blade, the blade usually 0.5-1.0 m. long, ovate-triangulars rachis scantily 
pubescent with few scattered short curling hairs or Glabrous; pinnae and 
pinnules subacute to obtuse, the pinnules at right angles or less often 
oblique to the midnerve of the pinna, the midnerve of pinnule distinctly 
pubescent; ultimate segments slightly to quite pubescent above, usually 
Gay densely) beneath and somewhat pubescent along the margins 3 indusia ciliate, 
Common, at least locally, in the yellow pine association, Apparently 
not a potential menace to} stock-raiser here, hewevery as in Washington, seetee,. 
Se Cryptogramma Re Bre Rock Brake, 
Ours attractive tufted ferns of rock crevices and ledges, the fronds 
erect, dimorphic, those of the previous season forming a mat on the crown 
of the dense rootstock; sterile fronds triangular-ovate, the blades bipinnate, 
concolorous, the ultimate segments ovate, crenulate and bluntish, fertile 
fronds central, surpassing the sterile, the ultimate divisions narrowly 
lanceolate or linear, revolute, the margins inrolling to partially cover the 
brown continuous sori, 
1. C. crispa var. acrostichoides (Re Bre) Ce Be Clarke, Parsley Fern, Tufts. 
15-20 or 30 cm, tall, the sterile blades parsley-like, green, somewhat 
spreading, the fertile blades golden-brown from the abundant confluent sori, 
strictly erect; ultimate segments of fertile blades 6-12 mm, long, thickened 
or subterete in cross-section, (Ce acrostichoides R. Bre). 
Frequent.on dry scree or rock outcrops to wet cliff faces, 3000-6500 feet, 
It is commenky the prevalent fern in this habitat. 
