ins 
2e Ae filix-foemina (L.) Roth. Lady Fern. Tall leafy ferns with fistulous 
straw-colored somewhat sulcate stipes and rachises, 025-1.5 m, tall; fronds 
erect or ascending, thin-membranous, the blades lanceolate to broadly so, 
tapering about evenly at both ends, the lower pinnae. sometimes quite distant, 
alternate throughout, the principal pinnae lanceolate, 10-20 on, long, pinnate 
and again toothed, the tecth “ine, spinulose, directed forward; sori about 
1 mm, across, about midway between midvein and margin, the eae early 
deciduous to expose the abundant brown sporangia. 
Common throughout our region, in swamps, moist woods and about sorings 
at middle elevations, sometimes forming lush clumpse 
Lo-a-CLUMp, 
oes ee ee 
Ae cyclosorum Rupr. Larger, the fronds 30-40 cm. wide; sori curving fas to (So) 
oi 
appear circular in outline, with a narrow rey Certain specimens (Thatuna 
Hills, Epling & Houck 9022) seem to represent this species, which to be sure, 
has been accepted by some field botanists (e.g. Piper and Frye) and discarded 
by others as merely a form of the widespread filix-foemina, “from which it 
A 
appears amply distinct." 
4. Cheilanthes Swe 
Commonly xerophytic, shallowly rooted ferns of caespitose habit, the stipes 
and rachises chestnut-shining, brittle, the old bases persistent upon the 
often dense rootcrown, Fronds of varied aspect, usually compound, chaffy 
or hairy. Indusium formed of the reflexed pinnule margins, the sori either 
roundish, free or confluent, borne on the thickened tips of the free veins. 
O Blades tomentose beneath, at first scant=" ‘vebby above, 
a’ 
4 glabrescent, bipinnate ie OC. gracillima 
© Blades glabrous, closely tripinnate Ze Cy siliquosa 
Lila i titted, Va 8 
