70 Our Native Ferns. 



III. GYMNOGRAMME, Desv. 



Sori oblong or linear, following the course of the veinlets and 

 like them, simple, forked, pinnated, or variously anastomosing, 

 without indusia. 



I I. EUGYMNOGRAMME. Veins free, under surface not 

 farinose; 



1, G. hispida, Mett. Rhizoma creeping; stipes grayish, pu- 

 berulent, 3' — 5' long; fronds 5-angled, i' — 3' each way, hispid 

 above, tomentose beneath, pinnate ; lower pinnae much the largest, 

 unequally triangular, pinnate ; upper pinnae lobed or crenated. 

 {G.pedata, of check lists). Tex., N. Mex., Ariz. V. 



\ 2. CEROPTERIS, Link. Fronds farinose below. 



2. G. triangularis, Kaulf. (Gold-fern, Golden-back). Stipes 

 densely tufted, slender, blackish-brown, polished, 6' — 12' long; 

 fronds 1' — 5' each way, deltoid, pinnate ; lower pinnae much the 

 largest, triangular, bipinnatifid ; upper pinnae more or less pin- 

 nately lobed; lower surface coated with yellow or white powder,, 

 finally more or less obscured by the fruit. Cal. and northward. IV. 



IV. NOTHOLiENA, R. Br. Cloak-fern. 

 Sori marginal, at first roundish or oblong, soon confluent into a 

 narrow band, without indusium, but sometimes covered at first by 

 the inflexed edge of the frond. Veins free. 



I I. EUNOTHOL^NA. Fronds not farinose beneath, scaly, 

 hairy, or tomentose. 



*Fro7tds simply pinnate. 



1. N. sinuata, Kaulf Rhizoma short, thick, very chaffy; 

 stipes 2' — \' long, erect; fronds 6' — 2° long, \' — 2' broad; pinnae 

 numerous, short-stalked, roundish or ovate, entire to pinnately 

 lobed, lower surface densely scaly. Tex. to Ariz. V. 



2. N. ferruginea, Hook. Rhizoma creeping, covered with 

 dark rigid scales; stipes tufted, 2^—4' long, wiry, blackish, woolly 

 at first; fronds 8' — 12' long, }' — i' broad, narrowly lanceolate; 

 pinnae numerous, ovate, pinnatifid, hairy above, densely tomentose 

 beneath, the wool at first whitish, but becoming ferruginous. Tex. 

 to Ariz. V. 



** Fronds tri — quadripinnate . 



3. N. Parryi,* D. C. Eaton. Rhizoma short, scaly ; stipes 2' — 

 4' long, dark brown, pubescent with whitish jointed hairs ; fronds 

 2' — 4' long, oblong-lanceolate, tripinnate, lower pinnae distinct ; 

 segments crowded, roundish-obovate, one line broad, densely 

 covered above with entangled white hairs, beneath with a heavier 

 pale-brown tomentum. Utah, Cal., Ariz. V. 



