94 AMERICAN FERN JOURNAL 
curved margin of the segments. The margins are 
herbaceous and denticulate-ciliolate. 
The generic position of this plant has been regarded 
as doubtful; but in habit and most essential characters, 
such as vestiture and the definitely thickened. vein- 
ends, it belongs to Cheilanthes rather than Pellaea and 
may accordingly be transferred to that genus as C. 
horridula,’ the new species name being required under 
Cheilanthes. : 
The following specimens are in the National Her- 
barium: 
Trexas:'° Crevices of rocks on hills, Turkey Creek, 
June 25, 1849, Wright 824 (type collection); high stony 
hills of the Pecos, June 1, 1851, Wright 2127; near 
mouth of the Rio Pecos, Oct., 1883, Havard; Sanderson, 
Pecos Co., Sept. 29, 1911, Wooton. 
EW Mexico: “Near the Copper Mines,’ Grant 
Co., Mex. Bound. Survey 1581 in part." 
Anis oNA: “Head of the Rio San Pedro, Nov. 5, 
1850,” Mex. Bound. Survey 1581 in part. 
Cruimuanvua: Rocky hills near Chihuahua, Oct. 31, 
1885, Pringle 447 (4 sheets). 
CoaunuiLa: Mountains north of Monclova, Sept., 
1880, Palmer 1422 (2 sheets). 
DuraneGo: “El Mundo Hill,” Lerdo, alt. 1650 meters, 
Nov. 25, 1911, Chaffey 58 in part. 
WASHINGTON, D. C. 
®* Cheilanthes esgsagee Se nom. 
Cheilanthes aspera Hook. . Fil. 2: rae aes 108. A. 1852, not Kaulf. 
Pe llaea aspera Baker in Hook. & Baker, Syn. Fil 1867 
deorey scabra ©. Chr. Ind. Fil. 172. 1905, not aa scabra Karst. 
to For Jocatity ve of Wright 824 and 2127 the writer is indebted to 
Mr. C. A. Weather who has looked up the records in the MS list of 
Wiens: 1849 and pet collections at the Gray Herbarium. 
of this id (in Torrey, U. S. & Mex. Bound. Bot 
oO 
Mines ‘and along the San meiito Bigelow.”’ The National Herbarium 
