1-KRN FAMILY. 



5 



3. Dryopteris Braunii (Spenner) Unclerw. Braun's Holly U.T:. 



Aspidiioii lira n nii Spenm-r. 1*1. Frib. 1:9. i- 

 Aspidinni acnleatum var. liiaunii Doell, Rheiii. Fl. 



21. 

 Dryopteris acnleata var. Braunii Underw. Native 



Ferns, I'd. 4, 112. 1893. 



Rootstock stout. Stipes 4'-$' long, chaffy with 

 both broad and narrow brown scales ; leaves ob- 

 long-lanceolate, not coriaceous, 2 pinnate, the 

 rachis chaffy, at least below ; pinnae numerous, 

 close together, lanceolate or linear-lanceolate, 

 broadest at the base, cut to the midvein into ovate 

 or oblong pinnules ; middle pinnae 2^'--4' long, 

 the lower gradually shorter ; pinnules truncate and 

 nearly rectangular at the base, acute or obtuse, 

 sharply toothed and beset with long soft hairs and 

 scales ; sori small, mostly nearer the midvein than 

 the margin ; indusium orbicular, peltate, entire. 



In rocky woods, Quebec to Alaska, south to Maine, 

 tlu- mountains of Pennsylvania, and to Michigan and 

 British Columbia. Ascends to 5000 ft. in Vermont. A UK. 



Dryopteris Noveboracensis ( L,. ) A. Gray. New York 



! 



5. Dryopteris Thelypteris (L.) A. Gray. 



Acrostichitm Thelypteris L. Sp. PI. 1071. 1753. 

 Aspidium Thelypteris. Sw.Schrad. Jouni.Bot.2: 40. 1800. 

 Dryt'pleris Tlit'lyptcris A. Gray, Man. 630. iSjv 



Rootstock slender, creeping. Leaves lanceolate 

 or oblong-lanceolate, scarcely narrower at the base 

 than at the middle, i-2> long, 4'-6' wide, short- 

 acuminate at the apex, membranous, once pin- 

 nate ; pinnae linear-lanceolate, short-stalked or 

 sessile, mostly horizontal, acuminate at the apex, 

 nearly truncate at the base, iJ^^Mong, slightly 

 pubescent beneath, deeply pinnatifid ; segments ob- 

 long, obtuse or appearing acute from the strongly 

 revolute margins ; veins regularly once or twice 

 forked; sori crowded, 10-12 to each segment; 

 indusia reniform, slightly glandular or glabrous. 



In marshes and wet woods, rarely in dry soil. N< \v 

 Brunswick to Manitoba, south to Florida. Louisiana 

 and Kansas. Ascends to 2000 ft. in Vermont. Also in 

 Europe and Asia, Summer. 



Poly pod i it i IM !<!. 



Asp id in HI . V<:rA-i; if, ,v/w S\v. Syn Fil 



Dryopteris Novebora ! m. 630. tfti&, 



Rootstock slender, widely creeping. Leave* 

 lanceolate, tapering both ways from the middle. 

 i-2 long, 4'-6' wide, membranous, long a 

 nate at the apex, once pinnate ; pinnae lanceolate. 

 sessile, long-acuminate, deeply pinnatiful. ciliate 

 and finely pubescent beneath, \%'-$' long, the 

 two or more lower pairs gradually shorter an<i 

 flexed, commonly distant ; segments flat, oblong, 

 obtuse, the basal ones often enlarged ; veins simple 

 or those of the basal lobes forked ; sori not coo- 

 fluent, borne near the margin ; indusium minute. 

 reniform, delicate, gland-bearing, fixed by itssinn*. 



In moist woods and thii ' 



tario and Minnesot i. -or :h Carolina and 



Arkansas. A-oend- to ,soofl in Virjrini.i Sometime* 

 sweet-scented in drying. July-Sept 



Marsh Shic-Ul tVni. 



