NOTHOCIIL/ENA. 113 



th roughout the entire plant, sori rather pronainent forming a 

 brown Hne all round just within the margin (not sunk in the 

 powdery substance). (Tab. CCLXXXVI. A.) — Cincinalis 

 Chilensis, Fee, in Gay, Fl. CkU. p. 497. Nothochlaena nivea, 

 Bertej'o, mss., and Moore {certainly not of Desvaux) . 



Hal). Juan Fernandez, on rocks in hot situations near El Pangal, Bertero, n. 

 1549. — No one familiar with N. nivea, on seeing this plant, can possibly confound 

 the two. It is in.ieed a very reiiiarkahle species, in ramification between the lax 

 character of N. nivea, with its long hair-like petioles, and the less divided and 

 more compact form of iV. Candida ; quite distinct from both. 



1 1 . N. dealbata, Kze. ; caudex short thick erect densely 

 paleaceous at the apex with ferruginous subulate scales, sti- 

 pites 2-4 inches long in my specimens, ceespitose slender 

 dark-purple glossy as well as the capillary rachises, fronds 

 2-4 inches long deltoideo-ovate tri-quadri-pinnate pure white 

 beneath with a powdery substance deciduous in age, primary 

 pinnae distant and as well as the secondary ones long ])e- 

 tiolate, the petioles (or branches) capillary patent not de- 

 flexed or divaricated, pinnules often ternate or quinate oval 

 or obovate scarcely 2 lines long sometimes lobed or subpin- 

 natifid, the margin reflexed, sori brown of few capsules sub- 

 marginal and linear. — Are. in Sillim. Journ. 1848. p. 82. 

 Cheilanthes, PL Amer. Sept. ii. p. 671 [not Don). Nutt. FL 

 of N. Am. n. p. 253. Gymnogramme, Nutt. hi Herb, nostr. 

 Nothoch. pulchella, Kze. in MohL and Schlecht. Bot. Zeit. i. 

 1843. 7>. i>:y?>^. 



Hab. North America : banks of the Missouri, Pia-sh, Nutlall {in Herb, nostr.). 

 — I know of no other locality for this species than that just given, but I am 

 puzzled to find how it is to be satisfactorily distinguished from 3'. nivea. 



12. N. Fendleri, Kze.; caudex 1-2 inches long as thick as 

 a man's finger ascending densely scaly at the summit with 

 copious ferruginous subulate scales, stipites tufted 1-2 inches 

 long purple-black as are the very zigzag slender capillary ra- 

 chises, fronds subcoriaceous 2 scarcely 3 inches long broad- 

 deltoid obtuse dark glaucous-green above, beneath pure 

 white and powdery 3-4-pinnate with dichotomous and sin- 

 gularly divaricating fragile capillary black branches (or se- 

 condary and tertiary rachises), pinnules scarcely 2 lines long 

 all petiolate except the terminal ones which are frequently 

 ternate and sessile obovate or oval once or twice lobed or 

 entire, the margin a little revolute but scarcely covering the 

 sori, which consist of few dark-brown capsules forming a 



VOL. V. Q 



