31 



N: ASCHENBOENIANA Klotzsch 



Rtstock short, creeping; stipes tufted, 

 2-S' long", wiry, ebeneous, densely scaly; 

 fronds 4-10' long, 2-3' broad, oblong-lan- 

 ceolate, tripinnatifid; pinnae lanceolate, 

 cut into linear-oblong, crenate or pin- 

 natifid pinnules; upper surface pale g, 

 the lower densely matted with linear, 

 ciliate, bright ferruginous scales, be- 

 neath which it is subfarinose; sori black. 

 Huachuca mts, Ar (Lemmon) ; Texas 

 (Drummond); Mex. 



Section CINCXNALIS Desv. Fronds fa- 

 rinose with w or y powder (in 1 sp 

 naked). 



*Fronds farinose below. 



I. — Fronds deltoid or pentagonal, bare- 

 ly bipinnate. 



ET: CANDIDA Hooker. 



Rtstock creeping, with narrow, rigid, 

 nearly black scales; stripes tufted, 3-6' 

 long, wiry, black and shining; fronds 

 rather shorter than stipe, deltoid-ovate, 

 pinnate; lowest pinnae with the lowest 

 inferior pinnules elongate and again pin- 

 natifid, the 3 or 4 succeeding pairs lan- 

 ceolate, pinnatifid into oblong segs, the 

 uppermost pinnae like the segs of the 

 lower; upper surface g; lower surface 

 w'ish farinose; margin slightly revolute. 

 Southwestern Tex. (Reverchon); NM 

 (Wright). Synonyms: N. sulphurea J. 

 Sm. — N. pulveracea Kunze. 

 NOTHOLAiENA CRETACE3A Liebm. 



Rtstock short, oblique, scales rigid, 

 lanceolate, with a narrow membranous 

 margin; stipes 2-7' long, brownish, 

 wiry, scaly when young; fronds 1-2' 

 long, broadly deltoid-ovate to penta- 

 gonal, tri-quadripinnatifid at base, grad- 

 ually simpler above; ultimate segs ob- 

 long or triangular-oblong, num, crowd- 

 ed; upper surface more or less covered 

 with decid glands; lower surface cop- 

 iously farinose with y or w'ish powder 

 except on the prominent dark brown 

 rachises; margins more or less recurved, 

 not covering the sporangia; spores glo- 

 bose, bk. SD Co! Baja! Ar (Parry, 

 Lemmon). Synonyms: N. Californica 

 D. C. Eaton. — N. Candida of collectors. 

 IT: HOOKER I D. C. Eaton. 



Rtstock short, densely covered with 

 rigid lanceolate dark-brown scales; 

 stipes tufted, 4-8' long, r'ish-brown, 

 wiry, shining; fronds 2-3' each way, 

 nearly pentagonal, composed of 3 divis- 

 ions; middle one slightly stalked, rhom- 

 boid-ovate, pinnatifid into a few toothed 

 pegs, the 2d pair larger than the 1st; 

 the side divisions sessile, deltoid, pin- 

 natifid on upper side as in middle divis- 

 ion, but each bearing on the lower side 

 a single large pinnatifid basal seg, and 

 above it smaller segs like those of the 

 upper side; lower surface covered with 

 nale y powder. Tex; Ar. Synonyms: 

 N. cretacea of check-lists, not of Liebm. 

 — N. Candida var. 5-fido-palmato Hooker. 



II. — Fronds lanceolate or linear-ob- 

 long, bipinnate or tripinnatifid. 



N: CrKAYI Dav. 



Stipes tufted, lV^-S 1 /^' long, terete, 

 chestnut-brown, with nearly bk, rigid, 

 linear-acuminate scales below, paler, 

 decid scales above; fronds 2-4' long, %- 

 1%' broad, oblong-lanceolate, once or 



32 



twice pinnate, upper surface sparingly, 

 under thickly covered with w powder; 

 rachises brown like the stipes, coated 

 with a granular substance extending; 

 down the stipes, and clothed with long, 

 slender, entire or ciliate, pale or w'ish 

 scales; pinnae short-stalked, oblique, 

 unequally triangular-ovate, ovate-lan- 

 ceolate, or lanceolate, deeply pinnatifid 

 or pinnately divided into 1 or 2 pairs? 

 of short-stalked or sessile, oblong, pin- 

 natifid obtuse pinnules, the remaining 

 portion obliquely pinnatifid with alt, 

 lobed or entire segs; margins unchang- 

 ed, reflexed; sori brown in a continuous; 

 line at the ends of the free veins, 

 southeastern Ar. 

 N-.LEMMONI D. C. Eaton. 



Rtstock short, scaly with narrow, 

 pointed, rigid, dark-brown chaff; stalks 

 dark r'ish-brown, wiry, 4-6' long, chaffy 

 at base with scales a little wider and 

 more scarious margined than those of 

 rtstock, otherwise smooth; fronds 6-7 r 

 long, 1-1 y 2 ' wide, linear-oblong, pinnate- 

 with num deltoid or ovate, 1 or 2 pin- 

 natifid pinnae, lowest ones a little 

 shorter than middle ones; upper surface 

 herbaceous-g, smooth; lower surface- 

 covered with w or slightly y'ish cera- 

 ceous powder; sori forming a narrow 

 sub-marginal line; margins of segs very 

 slightly recurved. Ar. 



TIT. — Fronds deltoid-ovate, tri-quad- 

 ripinnate at base. 

 N: NXVEA Desv. 



Rtstock short, chaffy with narrow 

 scales; stipes tufted, 4-6' long, Wiry, 

 bk, polished; fronds 3-6' long, iy 2 -2 r 

 broad, ovate, lanceolate, triangular- 

 ovate or deltoid, tripinnate; primary 

 pinnae mostly op, rachises nearly 

 straight; pinnules long-stalked; segs 

 roundish, nearly as broad as long, ter- 

 minal ones larger, entire or 3-lobed; 

 upper surfaces g, smooth, lower densely 

 coated with pure w powder; sori brown, 

 often descending- the free veins half- 

 way to midvein. Ar; NM. 

 Variety DEALBATA Dav. 



Segs smaller, more num, longer than; 

 broad, terminal ones rarely lobed. Upper 

 Missouri to NM; Ar. Synonyms: N. 

 dealbata Kunze Cheilanthes dealbata 

 Pursh. 



N: PENDLERI Kunze. 



Stipes densely tufted, dark-brown, 3- 

 5' long; rachis and all its branches zig- 

 zag and flexuous; fronds broadly deltoid 

 ovate, 3-5' each way, quadripinnate be- 

 low, gradually simpler above; pinnae 

 alt; ultimate pinnules oval or elliptical, 

 simple or 3-lobed. Colo; NM; Ar. 

 **Fronds naked belnw. 

 NO T H O LAE'N A TENERA Gillies. 



Stipes tufted, brownish, smooth and 

 shining; fronds 3-4' long, ovate-pyra- 

 midal, bi-tripinnate; pinnae mostly opp, 

 distant, lower ones somewhat triangu- 

 lar; ultimate pinnules ovate, often sub- 

 cordate, obtuse, smooth and naked on 

 both surfaces; considered as possibly 

 only a form of N. nivia by Underwood. 



Southern California; Arizona; Utah. 

 TAENITI3 Swz. 



Sori linear, central or submarginal; 

 veins reticulate. Five tropical species. 



