55 



56 



vein. Me; Wis;. Va. Synonym: Aspidium: 



cristatum elintonianum D. C. Eaton, in 



Gray Man, ed 5>, 6-65 (1867). 



D. G OX, DIANA A. Gray, Man ed 1, 631 



(1848). 



Goldie's fern. Fronds broadly ovate, 

 2-4° long; pinnae 6-9' long, broadest in 

 middle, pinnately parted; segs about 20 

 pairs, oblong-linear, subfalcate, serrate 

 with appressed teeth; veins bearing sori 

 very near midvein; indusia very large, 

 orbicular with a. narrow sinus. New 

 Brunswick; Minn; NC; Tenn; la; Ky. 

 Synonyms: Aspidium goldianum Hooker, 

 Edinb Phil J 6:333 (1S22). — Nephrodium 

 goldieanum Hooker. — Lastrea Goldieana 

 J. E. Smith. 



Variety CELSA Palmer, Biol soc Wash 

 pr 13:65 t 1 f 1-6, 8-12 (1899). 



Log fern. Dismal swamp, Va (Wm. 

 Palmer: Bartseh). 



(2) Fronds mostly bipinnate; indusia 

 convex, marginal glands 0. 

 D. F3XIX-MAS Schott, Gen Fil 1834. 



Male fern; Sweet fern. Rtstock short, 

 stout; fronds in a crown, 1-3° hi, broad- 

 ly oblong-lanceolate, slightly narrowed 

 toward base, bipinnatifid or bipinnate; 

 pinnules oblong-, smooth, polished be- 

 neath, larger ones pinnately incised; sori 

 large, near midvein, com on lower half 

 or 2-3 ds of seg; indusia. firm, smooth; 

 rachis more or less chaffy. Can; Colo: 

 Ar; Cal; Ore; Alk; Mich; SDak. Synon- 

 yms: Polypodium filix-mas L sp PI 1090 

 (1753). — Aspidium filix-mas Swz, Schrad 

 J bot 1800 (2): 38 (1801). — Nephrodium 

 filix-mas Rich. — Lastrea filix-mas Presl. 

 f} ^•■ffiGEWAtlS A. Gray, Man ed 1, 

 632 (1848). 



Marginal shield fern; Rock fern; 

 Wood fern. Fronds smooth, nearly cor- 

 iaceous in texture, 6'-2° long, ovate-ob- 

 long; pinnae lanceolate, broadest just 

 above base; pinnules oblong or oblong- 

 falcate, entire or crenately toothed; sori 

 r ear margin. Nova Scotia; BC; Ark; 

 Ala; Ga. Synonmys: Polypodium mar- 

 ginale L, Sp PI 1091 (1753). — Aspidium 

 marginal e Swz, Syn Fil 50 (1806). — 

 Nephrodium marginale Michx. — Lastrea 

 marginalis X E. Smith. 



III. — Fronds bipinnate or 3-pinnatifid; 

 segs spinulose-toothed. 

 D. RIG IDA (Aspidium rigidum Swz.). 

 Variety ARCrUTA Underwood, Our Na- 

 tive Ferns, ed 4, 116 (1893). 



Rtstock short, stout; fronds in a crown 

 on chaffy stalks, half-evergreen, smooth 

 °bove, paler and more or less glandular 

 beneath, 1-3° hi, ovate-lanceolate or tri- 

 angular-1, bipinnate; pinnae broadly ob- 

 long-lanceolate, lowest ones broadest, 

 scarcely shorter than middle ones; pin- 

 nules oblong, incised or doubly serrate 

 with spinulose teeth; indusia firm, con- 

 vex, edge bearing short-stalked glands. 

 Cal; Ore; Alk; chiefly near coast. Syn- 

 onyms: Aspidium argutum Kaulf, Enum 

 Fil 242 (1824). — A. rigidum argutum D. 



C. Eaton, in US Geol Surv W 100th 

 Merid 6:333 (1879). 



D. SPINTTLOSA Kuntze, Rev. Gen PI 2: 

 813 (1891). 



Spiny shield fern. Stipes with a few, 

 pale brown, decid scales; fronds ovttte- 



Ianceolate, bipinnate, pinnae oblique to 

 rachis, elongate-triangular, lower pairs 

 broadly triangular; pinnules oblique to 

 midrib, connected by a very narrow 

 wing, oblong.incised or pinnatifid with 

 lobes spinulose- toothed; indusia smooth, 

 marginal glands 0. Newfoundland; Alk; 

 Va; Ky; Nebr; Wash. Synonyms: Poly- 

 podium spinulosum Retz. Fl Sand ed 2, 

 250 (1795). — Aspidium spinulosum Swz, 

 Schrad J Bot 1800 (2):38 (1801.— Neph- 

 rodium s Desv. — Lastrea spinulosea 

 Presl. ~ 

 Variety INTERMEDIA Underwood, Our 

 Native Ferns, ed 4, 116 (1893). 



Scales of stipes few, brown with a 

 darker center; fronds oblong-ovate, 2-3- 

 pinnate; pinnae spreading, oblong-lan- 

 ceolate, lowest unequally triangular- 

 ovate; pinnules crowded, pinnateiy di- 

 vided; margin of indusium denticulate 

 and beset with stalked glands. Can; 

 Tenn; NC; Alk; Labrador. Snyonyms: 

 Aspidium intermedium Muhl, Willd sp 

 PI 5:202 (1810). — A americanum Dav. — 

 A spinulosum intermedium D. C. Eaton 

 in A. Gray, Man ed 5, 665 (1867). — 

 Dryopteris intermedia A. Gray, Man ed 

 1, 630 (1848). 



Variety DILATATA Underwood, Our Na- 

 tive Ferns, ed 4, 116 (1893). 



Spreading wood fern. Scales of stipes 

 large, brown with a darker center, 

 fronds broadly ovate or triangular-ovate, 

 com 3-pinnate; pinnules lance-oblong; 

 lowest oft much elongated; indusia 

 smooth and naked. Newfoundland; Alk; 

 Cal; Ore; Mont; Va. Synonyms: Poly- 

 podium dilatatum Hoffm. Deutsch Fl 2: 

 7 (1795). — Aspidium spinulosum dilata- 

 tum Hooker, Brit Fl 444 (1830).— Dry- 

 opteris dilatata A. Gray Man ed 1, 6ol 

 (1848). — Aspidium dilatum Swz. — A 

 campylopterum Kunz.— Nephrodium di- 

 latatum Desv. — Lastrea dilatata J. E. 

 Smith. _ _ .. 



D. BOOTTII Underwood. Our Native 

 Ferns, ed 4, 117 (1893). , . 



Boott's wood fern. Scales of stipes 

 pale brown; fronds elongate-oblong or 

 elongate-lanceolate in outline; pinnules 

 broadly oblong', very obtuse, lower pin- 

 natifid, upper and smaller merely ser- 

 rate; indusia minutely glandular. Can; 

 Alk; Minn; Va. Synonyms: Aspidium 

 boottii Tuckerman, Hovey's Mag hort 

 9:145 (1843). — A. spinulosum boottii D. 



C. Eaton, in Gray Man, ed 5, 665 (1867). 



D. PATULA Underwood, Our Native 

 Ferns ed 4, 117 (1893.) 



Stipes tufted, 8-12' long stramineous, 

 scaly at base; fronds pale g, 1-2° long, 

 V 2 -l° broad, ovate-lanceolate; pinnae 

 lanceolate or lower subdeltoid; rachis 

 and both surfaces naked; sori in rows 

 midway between edge and midrib; in- 

 dusium conspicuous, naked, Huachuca 

 mts, Ar (Lemmon). Synonyms: Aspi- 

 dium patulum Swz, Konigl Vetensk Ak 

 ad Handl 1817:74. — A. karwinskyanum 

 of Lemmon's distribution. — Nephrolepis 

 patulum Baker. — N. mexicanum Hooker. 

 NEPHROLEPIS Schott. 



Indusium reniform, fixed at sinus or 

 at arcuate base, opening toward margin 

 of frond; sori at end of free veins. Trop- 



