CATALOGUE. 317 



those of the ultimate segments with long tortuous cilia ; pinnae deltoid- 

 ovate, narrower upwards, crowded or sub-distant; ultimate segments minute 

 (^ a line broad), crowded, roundish, innumerable ; the unchanged margin 

 much incurved. — "Desv. in Journal de Botanique, ii, p. 44, t 13 f. 1." 

 Hooker, Sp. Fil. ii, p. 100, t 105, A. Hook. & Baker, Syn. Fil. p. 140. 

 C. elegans, Desv. G paleacea, Mart. & Gral. 



Western America, from Mexico to Chile, and reported from India ako. Arizona, Mr. Clarence 

 King. California, Monte Diablo Range, Prof. Brewer and Dr. Gibbons. Rocks, near the Gould and 

 Curry Mill, Nevada, H. G. Bloomer. San Diego, Mr. Cleveland. The specimens which I refer to this 

 species I had formerly supposed to belong to C. Fendleri, but a closer examination shows that the scales 

 of the frond are narrower, and not entire, and that the whole plant is more or less tomentose as well as 

 chaffy. The Californian specimens and those from Nevada are much smaller than those commonly sent 

 from Mexico and South America. C. elegans, Desv., was founded on a Chilian plant with more obovate- 

 pyriform ultimate segments. It is maintained as distinct by Four^ier, and specimens agreeing pretty 

 well with its characters have been collected, since this report was prepared, at Cajon Pass, California, by 

 Mr. William Stout. But they seem to be also nearly inseparable from C. Fendteri. 



Cheilanthes Idndheimeri, Hooker. 



Rootstock slender, elongated, creeping, branched, chaffy* with thinnish 

 ovate rusty scales ; stalks scattered, 4-7 inches high, blackish-brown, 

 polished, wiry, at first bearing narrowly lanceolate delicate scales inter- 

 mixed with woolly hairs ; frond 3-5 inches long, ovate-lanceolate, 3-4-pin- 

 nate ; pinnae mostly close-set ; ultimate segments roundish-pyriform, about 

 \ a line long, very much crowded, the unchanged margin much incurved ; 

 upper surface of frond white-tomentose, lower surface very chaffy with pale 

 or ferruginous scales, those of the midribs ciliate at the base, those of the 

 ultimate segments more and more ciliate and passing into entangled tomen- 

 tum.— Sp. Fil. ii, p. 101, t. 107, A. 



Western Texas to New Mexico and Arizona, Lindkeimer, No. 744 ; Wright, No. 817 ; King, Roihrock, 

 Palmer, etc. Plant with a long and slender rootstock, by which, and by the white-tomentose upper 

 surface of the frond, it is to be distinguished from C. myriophylla. The ultimate segments are much 

 smaller than in that species, and are also much more compactly arrangpd. 



CHEILANTHES VESTITA, Swartz, and C. ARGENTEA, Kunze, are the only other species of tho 

 genus attributed to the United States. Tho former ranges from New York to Northern Alabama, and 

 westward to Kansas. The latter is a species of Northern Asia, which is said to have been collected in 

 Alaska by Steller. C. aspera, Hooker, will be found described in the genus Pellma, to which Mr. Baker 

 has very properly referred it. 



V. CRYPTOGRAMME. R. Brown. 



Sporangia on the back or near the ends of the free veins.!, forming 

 oblong or roundish sori, which are at length confluent and cover the back 



