—44— 



the other tripinnatifid in the lower part, bipinnntiftd in the upper. 

 The lower side of the inferior pinnae of the first is excessively de- 

 veloped, the outline being nearly that of a right isosceles trian- 

 gle, the base nearly perpendicular to the main stipe, the basal, 

 inferior secondary divisions being about one-third the length of 

 the whole lamina. In the other, the two sides of the inferior 

 pinnae are nearly equally developed, it being ovate or lance-ovate 

 in outline ; the basal secondary segments are only one- fifth to 

 one fourth the length of the whole frond. The fronds of Calif or- 

 nica sometimes exceed a foot in height, while the other attains 

 habitually \ess than one-third this size. Californica is confined 

 to southern California and Mexico ; never, so far as I am aware, 

 having been found in the Sierra Nevada Mts. ; while this is found 

 at the exact axis of the State, due east thirty miles from Fresno 

 City. 



CHIELANTHES AMCENA. 



Fig. i— Frond natural size. Fig. 2— A pinnule slightly enlarged. Fig. 3— 

 Pinnule of C. Californica enlarged. 



Cheilanthes amcena. n. sp., the Charming Lip- Fern. Root- 

 stocks, densely tufted, chaffy; stipes, slender, chestnut brown, 

 smooth, somewhat ridged or winged on sides, concave above, 

 3-7 cm long, crowded, erect ; fronds, dark-green, 3-4.5 cm - long 

 2-3. 5 cm - broad, lance-ovate in outline, the two lower pairs of pin- 



