338 FILICES. Cheilanthcs. 



Bound. 234, and Ferns of the Southwest, 313. C. vestita, Brackenridge, Ferns 

 of U. S. Expl. Exped., not of Swartz. 



In rocky places, mostly at high elevations (6,000 to 8,000 feet), from the Yosemite to Oregon, 

 by many collectors ; also in British Columbia. Called " Lace Fern" by visitors to the Yosemite. 

 A single specimen from Bartlett's Canon, near Santa Barbara, collected by Rolhrock, is twice the 

 usual size, and fully tripinnate. 



* * Fronds very scaly beneath, and sometimes sjnirinyly tomentose also. {The 

 species of this group are very perplexing, all much resembling each other and 

 difficult to define. The most distinctive characters are found in the rhizoma 

 or rootstoch.) 



5. C. myriophylla, Desv. Eootstock short, ascending, often nodose, covered 

 with narrow dark-brown rigid scales : stalks clustered, 2 to G inches high, Aviry, 

 castaneous, covered with partly deciduous pale-cinereous narrow appressed scales and 

 paleaceous hairs : fronds 3 to 8 inches long, ovate-oblong or oblong-lanceolate, 

 smooth and green or deciduously pilose above, 3 - 4-pinnate ; rhachises and midribs 

 densely covered beneath with pale-brown or ferruginous ovate or ovate-lanceolate 

 ciliated scales ; pinnae deltoid-ovate, narrower upwards : ultimate segments minute 

 (half a line broad), roundish or roundish-pyriform, crowded, innumerable, sometimes 

 (especially those of sterile fronds) three-lobed or parted, covered beneath with ovate 

 scales having few or many long tortuous cilia passing into branched and entangled 

 hairs, the unchanged margin of the segments much incurved. — C. elegans and 

 C. myriophylla, Desvaux in Berlin Mag. v. 328 ; Hooker, Sp. Fil. ii. 100 and 102, 

 t. 105, C. myriophylla, Hooker & Baker, Syu. Fil. 140; Eaton, Ferns of tlie 

 Southwest, 316. C. elegans, Kuhn, Beitr. 8. C. ^xt^eacea. Martens & Galeotti, 

 Syn. Fil. Mex. 76, t. 21, fig. 2. 



In crevices of rocks and on exposed rocks, mostly at elevations of 3,000 to 5,000 feet, from 

 Lake County southward in the Coast Ranges, and in the Sierra Kevada from Western Nevada to 

 San Bernardino County ; South Pass of the Rocky JMountains, Arizona and New Mexico, and io 

 Peru and Chili. This fern presents many forms, some with broad and but slightly ciliated scales 

 often passing for C. Fcndleri, or recommended as probably distinct species by various authors and 

 collectors. I have seen no genuine C. Fcndleri from California, the plants foraierly so called 

 being all forms of the jiresent species. 



6. C. Clevelandii, Eaton. Eootstock cord-like, creeping, elongated, covered 

 with narrow rigid dark-brown scales : stalks scattered, 2 to 6 inches long, dark- 

 brown, at first bearing paleaceous hairs : fronds 4 to 6 inches long, ovate-lanceolate, 

 3_4.pinnate, smooth and greei* above, beneath everywhere deep fulvous-brown 

 (when mature) from the dense covering of closely imbricated ovate-acuminate elegantly 

 ciliate scales ; ultimate segments crowded, innumerable, flattish, nearly round, sessile, 

 I to |- a line broad, the terminal ones a little larger ; margins narrowly recurved and 

 unchanged in texture. — Torr. Bot. Bulletin, vi. 33, and Ferns of N. Amer. 1. 89, 

 t. 12, fig. 2. 



In loose sandy soil and at the base of rocks, among the mountains of San Diego County {D. 

 Cleveland, W. Stout) ; also in the Peninsula of Lower California, J. Schot.t. The rootstock is 

 nearly as thick as a goose-quill and several inches long. The scales are at first white, but gradu- 

 ally turn to a rich chestnut-brown. Specimens recently received confirm the species. 



5. PELL^A, Link. Cliff-Brake. 



Sori roundish or oblong, placed near the ends of the veins, often confluent in a 

 submarginal band : involucre membranaceous, often broad, continuous round the 

 pinnules, and formed from their reflexed margin. Sterile and fertile fronds mucli 

 alike, 1 - 4-pinnate, generally smooth and sometimes glaucescent. Stalk usually 

 dark-colored. 



A genus of about 50 species, none of them large ferns. Eleven species occur in the United 

 States, a few more in tropical America, and a good many in South Africa. The genus is closely 



