34 



POLYPODIACEAE. 



Vol. I. 



Blades a'-s' long ; stipes slender ; indusia herbaceous. 



Blades 6'-is' long; stipes stout, tomentose; indusia membranous. 



3. C. Feei. 



4. C. tomentosa. 



i. Cheilanthes alabamensis (Buck!.) 

 Kunze. Alabama Lip-fern. Fig. 78. 



Pteris alabamensis Buckl. Amer. Journ. Sci. 45 : 



177. 1843- 

 C. alabamensis Kunze, Linnaea 20 : 4. 1847. 



Rootstock creeping, rather stout and short, 

 clothed with very slender hair-like dark fer- 

 ruginous scales. Stipes black, 3'-7' long, 

 slender, wiry, villous at least towards the 

 base with rusty hair-like scales ; blades lan- 

 ceolate, glabrous, 2'-io' long, 2-pinnate; 

 pinnae numerous, ovate-lanceolate, acumi- 

 nate, very short-stalked, the lowest usually 

 smaller than those above ; pinnules oblong 

 or triangular-oblong, mostly acute, often 

 auriculate on the upper side at the base, or 

 the larger ones on both sides and above 

 more or less lobed ; indusia pale, mem- 

 branous, continuous or sometimes slightly 

 interrupted by the incising of the pinnules. 



On rocks, Virginia to Alabama, Illinois, Mis- 

 souri, Arkansas and Arizona. Aug.-Oct. 



2. Cheilanthes lanosa (Michx.) Watt. 

 Hairy Lip-fern. Fig. 79. 



Nephrodium lanosum Michx. Fl. Bor. Am. 2 : 270. 1803. 



Cheilanthes vestita Sw. Syn. Fil. 128. 1806. 



C. lanosa Watt, Trimen's Journ. Bot. 12: 48. 1874. 



Rootstock short, creeping, with pale rusty-brown 

 scales. Stipes .tufted, wiry, chestnut-brown, 2'-4' 

 long, hirsute with rusty jointed hairs; blades her- 

 baceous, oblong-lanceolate, 4'-o' long, i'-2' wide, 

 gradually attenuate to the apex, 2-pinnate ; pinnae 

 somewhat distant, especially the lower ones, deltoid- 

 ovate to ovate-oblong, more or less densely hirsute 

 like the stipe and rachis and usually somewhat 

 glandular; pinnules in several pairs, close or some- 

 what apart, oblong, deeply pinnatifid into close 

 roundish or oblong lobes, the margins of these form- 

 ing separate herbaceous indusia. 



On rocks, Connecticut and southern New York to 

 Georgia, west to Kansas and Texas. Ascends to 1900 

 ft. in North Carolina. July-Sept. Clothed Lip-fern. 



3. Cheilanthes Feei Moore. 

 Lip-fern. Fig. 80. 



Slender 



Myriopteris gracilis Fee, Gen. Fil. 150. 1830-52. 

 C. lanuginosa Nutt. ; Hook. Sp. Fil. 2: 99. 1858. 

 C. gracilis Mett. Abh. Senck. Nat. Gesell. 3 : 80. 



1859. 

 Cheilanthes Feei Moore, Ind. Fil. xxxviii. 1857. 



Rootstock short, covered with narrow brown 

 scales lined with black. Stipes densely tufted, 

 slender, about as long as the leaves, at first cov- 

 ered with woolly hairs, at length nearly glabrous ; 

 blades ovate-lanceolate, 2'-s long, 1/-2' wide, 

 2-3-pinnate, the upper surface slightly tomentose, 

 the lower densely woolly with soft whitish-brown 

 hairs ; pinnae mostly oblong-ovate and contiguous, 

 the lowermost deltoid-ovate and distant; pinnules 

 pinnate or crenately pinnatifid into several pairs 

 of crowded minute roundish segments, the reflexed 

 margin forming an herbaceous indusium. 



On rocks, Illinois and Minnesota to British Co- 

 lumbia, to Texas and New Mexico. July-Oct. 



