1035 1036 



rowly lanceolate from a broader base spreading triangular lobes; sori conflu- 



acuminate, deeply pinnatifld into oblong, ent. 



obliquely subfalcate, obtuse segs- un- D. TJNITA Kuntze, Rev Gen PI 2:811 



der surface copiously dotted with res- (1891). 



inous globules; veins free, simple; sori Stipes 1-1 % long, brownish, naked; 



near margin; indusium reniform, min- fronds iy 2 or more long, 5-8' broad; 



ute, glandular, somewhat pilose evan- pinnae narrow, cut from l-3d to half- 



escent. Fla. Synonyms: Aspidium strig- way down into sharp, pointed lobes: 



osum Fee, Hist Fouget Lycop Antille 78 lower pinnae not reduced; veins pinnate 



t 22 f 2 (1866). Aspidium conterminum in the broad lobes with 6-8 veinlets on 



btrigosum D. C. Eaton, Torr cl b 7:62 each side, lower ones of contiguous 



(1880). Nephrodium conterminum Desv groups united; sori near ends of veins 



in part. ' principally in lobes. Fla. Synonyms: 



New York fern Rtstock slPnH^r Ann Mus bot Ludg Bat 1:23 



creeping; fronds 2 long 4-6' Soad not A ' ^brum Mett (1856-8). 



lanceolate, tapering both ways from II- Fronds bipinnatifld or bipinnate; 



middle; pinnae lanceolate, 2 or more indusia rather large; segs not spinulose. 



lowest pairs gradually shorter and de- A. Fronds small, narrowly lanceolate. 



flexed, those of barren frond broader- D. PBAGBANS Schott, Gen Fil 1834 



segs flat, oblong, basal ones oft en- Fragrant fern. Fronds 4-12' hi, gland- 



larged; veins simple or forked in basal ular and aromatic; pinnae linear-oolong, 



obes; sori distinct, near margin; indus- pinnately parted; segs toothed or nearly 



mm minute, margin glanduiiferous. entire, nearly covered beneath with very 



Newfoundland; Minn; Ga; Ala; Ark large thin imbricate indusia, which are 



Synonyms: Polypodium noveboracense orbicular with a narrow sinus, margin 



L, fep PI 1091 (1753). Aspidium nove- ragged and sparingly glanduiiferous. 



boracense Swz, Schrad J bot 1800 (2): Labrador; Alk; NY; Wis; Minn; Vt; NH; 



Jo U801). A. thelpteroides Ewz Me; Greenland. Synonyms: Polypodium 



Nephrodium noveboracense Desv. Las- fragrans L, sp PI 1089 (1753). Aspi- 



trea noveboracensis J. E. Smith. dium fragrans Swz, Schrad J bot iSuO 



II. Lower pinnae little smaller than ^ 2):35 (^ 01 )- 



those above. II. AA. Fronds larger, mostly 2-4 



F^A^Sft?* 111 A - Gra y> Man ed 1, hi. 



630 (1848). (1). Fronds bipinnatifld or nearly 



Marsh fern; Snuff-box fern: Rtstock twice pinnate; indusia large, thinnish 



slender; fronds 1-2 long, 4-6' broad, and flat. 



lanceolate, pinnae mostly horizontal D. PLORIDA1TA Kuntze, Rev Gen PI 2: 



linear-lanceolate; segs oblong, entire,' 812 (1891). 



obtuse or appearing acute in fr from Stipes 6-10' long, sparingly clothed 



the strongly revolute margins- veins with ovate scales; fronds lanceolate, 



mostly forked, bearing sori near their 18-20' long, 5-8' broad; fertile pinnae 



middle; indusia minute, smooth naked confined to upper half of frond, nar- 



New Brunswick; Manitoba; Kans; Tex : rowly lanceolate, cut down to narrowly 



Fla. Synonyms: Acrostichum thelyp- winged secondary rachises into oblong, 



tens L, sp PI 1071 (1853). Aspidium distinct pinnules; sterile pinnae broader, 



thelypteris Swz, Schrad J bot 1800 (2)- shorter, and sub-deltoid below, less deep- 



40 (1801). Polypodium thelypteris L ly cut. Fla; Ala. Synonyms: Nephro- 



Nephrodium thelypteris Desv. Lastrea dium floridanum. Hooker, Fil Exot t 99 



thelypteris J. E. Smith. (1859). Aspidium floridanum D. C. 



D. PATENS Kuntze, Rev. Gen PI 2-813 Eaton, in Chapman's Fl So t 



(1891) (1860). A. cristatum floridanum Hooker. 



Sweet fern. Rtstock rather stout *> CKXSTATA A. Gray, Man ed 1, 631 



2 !3 e Ve i r o a ngf r ri d O S ' ttJSfSaUSE U "Ut *** Crested shield fern. Fronds 



long, softly pubescent beneath; pinnae linear-oblong or lanceolate in outline, 



closely placed, linear-acuminate lowest 1-2 long; pinnae short, 2-3 long tri- 



pair somewhat deflexed, all cut % of angular-oblong or lowest nearly trian- 



way to midrib; segs num, acutish basal gular, deeply pinnatifid; segs b-7 I 



ones longest; veinlets evident, lowest finely serrate or cut-toothed; i 



ones of adjoining segs oft uniting; sori near midvein as margin; indusia smooth, 



near margin; indusia very pubescent naked. Can; Ark; Id; Nebr; Va. fcynon 



Fla; Ala; Cal. Synonyms: Polypodium yms: Polypodium cristatum L, sp P 



patens Swz, Prodr Veg Ind Occ 133 1090 (1753). Aspidium cristatum Swz, 



(1788). Aspidium patens Swz, Syn Fil Schrad J bot 1800 (2): 37 (1801). A. 



49 (1806). A. molle Swz, Schrad J bot lancastriense Spreng. Nephrodium cris- 



1800 (2): 34 (1801). tatum Michx. Lastrea cristata Presl. 



D. SIMUI.ATA Davenport, bot gaz 19- Variety CX.JNTONIANA Underwood, Our 



497 (1894), as syn. ' Native Ferns, ed 4, 115 (1893). 



Me to Md; Mo. Synonym: Aspidium Fronds much larger, 2%-4 long; pm- 



simulatum Davenport, bot gaz 19-497 nae oblong-lanceolate, broadest at base, 



(1894). 4-6' long, 1-2' broad, deeply pinnatifld; 



**Texture firmer or subcoriaceous segs 8-16 pairs, crowded or distant, lin- 



veins forking freely. ear-oblong, obscurely serrate; veins pin- 



I- Fronds pinnate; pinnae cut into nately forking, bearing sori near mid- 



