FERN FAMILY. 

 i. Phegopteris Phegopteris (L,.) Underw. 



Polypodium Phegopteris I,. Sp. PI. 1089. 1753. 

 Phegopteris polypodioides Fe, Gen. Fil. 243. 1850-52. 

 Phegopteris Phegopteris Underw.; Small, 'Bull. Torr. 

 Club, 20 : 462. 1893. 



Rootstock slender, creeping, somewhat chaffy at 

 least when young. Stipes S'-o/ long ; leaves trian- 

 gular, thin, mostly longer than wide, 4 / ~9 / long, 3'- 

 6' wide, acuminate at the apex, pubescent, especi- 

 ally on the veins beneath ; pinnae lanceolate or 

 linear-lanceolate, acuminate at the apex, sessile, 

 broadest above the base, pinnately parted very 

 nearly to the rachis into oblong obtuse entire seg- 

 ments, the lower pair deflexed and standing for- 

 ward ; basal segments, at least those of the upper 

 pinnae, decurrent and adnate to the winged rachis ; 

 sori small, borne near the margin. 



In moist woods and on hillsides, Newfoundland to 

 Alaska, south to the mountains of Virginia, and to 

 Michigan and Washington. Ascends to 4000 ft. in 

 Vermont. Also in Europe and Asia. Aug. . 



Long Beech-fern. 



Phegopteris hexagondptera < Michx. 

 Fee. Broad Beech-fern. IMJJ. 4 



Polypodium hexagonopterum Michx. PI. Bor. Am. 



2: 271. 1803. 

 Phegopteris hexagonoptera Fee, Gen. Fil. 241 



1850-52. 



Rootstock slender, creeping, chaffy, some- 

 what fleshy. Stipes 8'-iS' long, straw-colorad, 

 naked ; leaves triangular, as broad as or brooder 

 than long, y / -i2 / wide, slightly pubescent and 

 often slightly glandular beneath, acuminate at 

 the apex ; uppermost pinnae oblong, obtuse. 

 dentate or entire, small, the middle ones lance- 

 olate, acuminate, the very large lowest pair 

 broadest near the middle, pinnately parted 

 nearly to the midvcin into linear-oblong obtuse 

 segments ; sori mostly near the margin. 



In dry woods and on hillside, ym-bt-i- IM Minne- 

 sota, south to Florida and Louisiana. Ascends to 

 4000 ft. in North Carolina. Leaves fragrant. Ana*. 



3. Phegopteris Dryopteris (L,. ) Fee. 

 Oak-fern. (Fig. 41.) 



Polypodium Dryopteris ~L,. Sp. PI. 1093. 1753. 

 Phegopteris Dryopteris F6e, Gen. Fil. 243. 1850-52. 



Rootstock slender, creeping. Stipes slender, 

 4 / -i2 / long, chaffy at least near the base ; leaves 

 thin, broadly triangular, almost glabrous, 4 / -8 / 

 wide, ternate, the three primary divisions stalked, 

 pinnate or partly 2-pinnate, the terminal one 

 slightly larger, all spreading more or less at right 

 angles to the stipe ; pinnules lanceolate or oblong- 

 lanceolate, obtuse or subacute, sessile ; segments 

 oblong, obtuse, entire or crenate, close together. 



In moist woods, thickets and swamps, Newfound- 

 land to Alaska, south to Yirginia. Minnesota, Oregon, 

 and in the Rocky Mountains to Colorado. Ascends to 

 2400 ft. in the Catskills. Also in Europe and Asia. Aug. 

 Phegopteris Dryopteris Robertiana (Hoffm.) Davenp. 



Cat. Davenp. Herb. Suppl. 47- l88 3- 

 Polypodium Robertianum Hoffm. Deutsch. Fl. 1795. 



Phegopteris calcarea F6e, Gen. Fil. 



when dry ; leav 

 much the large, r 

 smaller, pinnatifid, lobed or e'ntire ; sori numerous. Labrador t. 



cgopieris caicarea <ee, uen. rii. ^-M. loow-o-'- ^^ . . . . 



Stipes 6'-io' long, straw-colored when dry ; leaves 6'-&' long most* 



- the larest mnati ifid " 



Wtl^*V_a \J 1\J lUIlg, DUOW -\,\JL\Jl\-*~* m.^_* x*. _ , ^ 



ovate, 2-pinnate, the lowest pinnae much the largest, pn 





