overtopping a man ; but southward its more open growth seldom 

 exceeds two or three feet. 



Cheilaiithes Calif ornica Mett. Lace fern. A common species 

 of the southern coast mountains, reaching as far inland as San 

 Bernardino, and extending north to Russian river. It affects the 

 base of shading cliffs, in soil which is wet in the growing season, 

 but becomes dry later. 



Cheilaiithes amoena A. A. Eaton. The type station of this 

 species is Dunlap. in Fresno County, and it has not been collected 

 elsewhere. Mr. Gilbert regards it as a variety of C. Calif ornica. 



Cheilaiithes viscida Davenp. In the southern part of the State 

 this is strictly a desert species, occurring in the shaded crevices of 

 rocks, at low altitudes, in the mountains which form the western 

 border of the Colorado Desert, as at White Water (where first 

 collected by Parry and Lemmon), Morongo, Palm Springs and 

 Vallecito, and also in the Panamint Mts., in the Mojave Desert. 

 It is also reported from Downieville Buttes. in the central part 

 of the State, a station quite incongruous with its southern dis- 

 tribution. 



Cheilaiithes Cooperae Eaton. Widely distributed throughout 

 the State, but of very local occurrence. Mt. Shasta appears to be 

 its northern limit, and Slover Mt., near San Bernardino, its south- 

 ern. Mrs. Elwood Cooper, in whose honor it was named, col- 

 lected it near Santa Barbara, and it has been collected in Amador 

 county by Hansen, and in Mariposa by Congdon. It is found in 

 deep crevices of cliffs or in canyons. 



Cheilaiithes gracilliina Eaton. Growing among rocks in the 

 Sierra Nevada, at 7,000 to 9,000 ft. alt., from the Yosemite to Mt. 

 Shasta, and north to Washington. 



Cheilaiithes fibrillosa Davenp. This and the next are known 

 only from the type collections. The station is the San Jacinto 

 river at the point where it makes its exit from the mountains of 

 the same name, where it was found growing among boulders in 

 June, 1882, by Parish. 



Cheilaiithes Parishii Davenp. The specimens from which this 

 fern was described were collected at the foot of a bluff, in An- 

 dreas' Canyon, near Palm Springs, on the western border of the 

 Colorado Desert, in March, 1881. 



Cheilaiithes Clevelandi Eaton. In the mountains of San Diego 

 county, north to Beaumont, Riverside county, and south into 



