FERN FAMILY 



27 



W^ 



5. Cheilanthes feci Aloore. 

 Slender Lip-fern. Fig. 5L 



Myriofteris gracilis Fee, Gen. Fil. 150. pi. 29, f. 6. 1852. 



Cheilanthes gracilis Riehl; Mett. Abh. Senckenb. Ges. Frankfurt 3: 80. 1859, not 

 Kaulf. 1824. 



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



Rhizome multicipital, the divisions short-creeping or ascending; 

 scales tufted, linear, 5-7 mm. long, cinnamomeous or darker, with a 

 sharp blackish stripe, entire, subflexuous at the tip. Fronds numerous, 

 tufted, erect-spreading, 8-25 cm. long; stipes 3-12 cm. long, very 

 slender, brown, deciduously pilose ; blades linear-oblong to ovate or 

 deltoid-ovate, acuminate, 5-13 cm. long, 1.5-4 cm. broad, usually 3-pin- 

 nate ; pinnae spreading, deltoid to ovate-oblong, thinly villous above 

 with lax. flexuous, whitish hairs, densely but coarsely tomentose with 

 pale fulvous hairs beneath, the rachises similarly clothed; tertiary seg- 

 ments roundish or oval, simple, or the larger ones crenately lobed or 

 divided ; margins lightly crenate, narrowly recurved ; leaf tissue deli- 

 cately herbaceous, grayish green. 



Ledges and rock crevices. Upper Sonoran and Transition Zones; Illinois and 

 southern Minnesota, westward to British Columbia, Washington (Almota), south- 

 ern California (Providence Mountains), and the Mexican border region from cen- 

 tral Texas westward. Type locality: Hillsboro, Missouri. 



6. Cheilanthes fibrillosa Davenp. 



Fibrillose Lip-fern. Fig. 52. 



Cheilanthes lanuginosa fibrillosa Davenp. Bull. Torrey Club 12: 21. 1885. 

 Cheilanthes fibrillosa Davenp.; Underw. Nat. Ferns ed. 3, 95. 1888. 



Rhizome short-creeping, branched, the divisions intricate, densely 

 appressed-paleaceous ; scales imbricate, linear-attenuate, hair- 

 pointed. 2.5-3 mm. long, less than 0.5 mm. broad, dark brown, con- 

 colorous, rigid, lustrous, subentire. Fronds several, erect ; stipes 

 5-9 cm. long, slender, subflexuous, castaneous, thinly fibrillose- 

 paleaceous ; blades narrowly oblong, acuminate, 5-8 cm. long, 2-3 cm. 

 broad, 3-pinnate, thinly tomentulose above with delicate, septate, 

 dirty white hairs, copiously fibrillose-pakaceous on the rachises 

 beneath, the scales pale rusty, linear-attenuate, lax, spreading, tortu- 

 ous, mingled with loose tomentum and completely covering the pin- 

 nae ; tertiary segments minute, rounded-cuneate to rhombic, sessile, 

 entire or the largest ones crenately lobed; outer margin crenulate, 

 widely revolute, partially enclosing the few sporangia; leaf tissue 

 very delicately herbaceous, light grayish green. 



Among boulders. Upper Sonoran Zone; northern base of San Jacinto Moun- 

 tain, Riverside County, California. Known only from the type specimens. 





^i.^^^^ 



7. Cheilanthes parishii Davenp. 

 Parish Lip-fern. Fig. 53. 



Cheilanthes parishii Davenp. Bull. Torrey Club 8: 61. pi. 8. 1881. 



Rhizome short-creeping, branched ; scales tufted, oblique, linear- 

 lanceolate, attenuate, 3-4 mm. long, castaneous with a sharp blackish 

 stripe, subentire. Fronds erect, *12-15 cm. long; stipes 4-7 cm. long, 

 dark castaneous, deciduously fibrillose-paleaceous and witli a few 

 •larger whitish scales; blades oblong-lanceolate, 8-10 cm. long, 2-3.5 cm.' 

 broad, 3-4-pinnate, coarsely villous on both sides with long, flexuous. 

 hyaline, septate hairs, paleaceous on the rachises beneath, the scales 

 mostly light castaneous, elongate, flexuous, toothed or laciniate, spread- 

 ing, together with the coarse hairs not wholly covering the pinnae; 

 pinnae inequilateral, deltoid to deltoid-oblong; segments pinnately 

 lobed, or the larger ones with 1 or 2 pairs of free divisions, these 

 minute, rhombic to rounded-cuneate, the terminal ones the larger, 

 mostly 3-lobed : distal margins narrowly recurved, not covering the few 

 sporangia; leaf tissue spongiose-herbaceous, grayish green. 



Crevices of rocks, Lower Sonoran Zone; Andreas' Canon, Palm Springs, east 

 side of San Jacinto Mountain, Riverside County, California. Known only from 

 the type locality. 



\^'Ap' 



t 



k 





2 



