POLYPODIACE,E. gj 



37. CHEILANTHES,^, Presl. 



(Nothol^n^e Spec. J. Sm. Cassebeer^e Spec. Auct.) 



The genus Cassebeera, as restricted by Kaulfuss and Presl, appears 

 to us a very natural one, on account of the geminate sori and the 

 peculiar habit of the few species which it embraces. Mr. J. Smith 

 has framed the technical character of Cassebeera so as to include 

 several species of Cheilanthes and Pteris of authors; nearly all of 

 which we restore to their original genera, where, as regards both their 

 habit and the character of their sori, they appear to us to belong, 

 rather than to the Cassebeera of Kaulfuss. 



1. Cheilanthes vestita, Sw. 



Cheilanthes vestita, Sw. Syn. Fil. p. 128; Willd. Spec. PI. 5, p. 458; Hook. Fl. Bor. 

 Amer. 2, p. 264. 



Hab. Banks of Spipen River, Oregon. Butes, in the valley of the 

 Sacramento River, California : in rocky situations. 



2. Cheilanthes ambigua, A. Rich. ? 



G. frondibus bipinnatis; laciniis oblongis sessilibus subobtusis inciso- 

 dentatis revolutis; soris subrotundis interrupts vel later alibus con- 

 fluentibus nudis, rliacMbus costis et laciniis paleaceo-hirsutis. 



Cheilanthes ambigua, A. Rich. Bot. Voy. Astrol. p. 84 ; A. Cunn. in Hook. Conip. 

 Bot. Mag. 2, p. 366. 



Hab. Vicinity of the Bay of Islands, New Zealand. 



Roots tock short and creeping. Fronds tufted, about a span high, 

 bipinnate, with short paleaceous stipes. Pinnae opposite and sessile, 

 not exceeding half an inch in length, the 2 or 3 inferior pairs distant. 



