1027 1028 



oides Michx. ^ piBMTCTM Kunze. 



A. PABVULUM Mart & Gal. Stipes 4-8' long, erect, grayish, naked; 



Fronds tufted, erect, rigid, 4-10' long fronds %-l long, 3-4' broau; pinnae 



narrowly linear-lanceolate; stipe and 12-20 pairs, oblong-lanceolate, point 



rachis bk and shining; pinnae num, ob- bluntish, margin inciso-crenate, upper 



long, obtuse, entire or crenulate, aur- one narowed suddenly at base, lower one 



Icled on upper side, nearly sessile; mid- obliquely truncate: sori short, falling 



die pinnae longest, lower gradually short of both midvein and margin. Fla; 



shorter and deflexed; sori short, abund- Ar. 



ant. Va; SC; Fla; Ark; NM. Synon- ****Fronds 2-3-pinnatifld. A. Tex- 



yms: A. ebeneum minus Hooker. A. ture somewhat coriaceous, 



resiliens Kunze. A> BIJT A-inmAIA L. 



P-brown, sh,n- 



low simply pinnate above; 



InTdTb t on,, naUed ; frond, 



Variety INCISUM Moore ........ toothed above; veins obscure; sori short. 



Fronds larger, often %' or more broad basal ones sometimes double. Ct, NY, 



Incised ' vt! ' Baker. 



- ong, ces- , 



nut brown; fronds 6-12' long narrow setaceous scales; stipes densely tufted. 



With 20-40 pinnae on each side; pTnnTe %-!' long, cas ^ n ? ous '* ro d n s n ? e 4 20 25 



crenate above, abruptly narrowed at oblanceolate, bipmnate; pinnae 2C 



base, oft auricled, lowe? much Educed; Pairs lanceolate lower gradually re- 



, , uce; 



texture subcoriaceous; veins flabellate duced, cuneate-truncate ; Pj u {f* 

 sori 1-2. linear-oblong, parallel with low! Pairs, oblohg, toothed or 





* 



herbaceous or 



Stipes densely tufted, 2-4' long, naked membranous. 



lower part chestnut brown; fronds 2-6* A. B&ADX.EY1 ID. C. Eaton. 

 long, %' broad, with 12-20 pinnae on Stipes tufted 2-3' long, ebeneous, as 



each side, which are ovate or rhomboid- also lower half of rachis; basal scales 



al in outline, upper edge narrowed sud- brown-bk, lanceolate-acuminate fronds 



denly at base, lower obliquely truncate, 3-7' long oblong-lanceolate bipinnatifld, 



outer part deeply crenate; raches naked pinnae 8-12 pairs, short-stalked or ses- 



ori copious. Vt; Can; New Brunswick, sile. ovate-oblong, lowest not J educe ^ 



A. DENTJLTITM L, largest pinnatifid with oblong lobes 



Stipes : "ted, 2-r long, naked, eben- toothed at tip; sori short, near midvein. 



.^^ I Y ^To : F^^UM Presl, Rel Haenk 



2 - 6 ' h 10ng i 1S fr ?a n n d c S eo?; 1 te' 



crenate; sterile fronds smaller on short- long, delicately membranous lanceolate 



er stipes; rachis naked; sori copious in narrowed below, 2-3-pinnate, ultimate 



parallel rows. Fla; SC. segs obovate-oblong, entire or 2-3-lobed, 



II. Pinnae only 2-5, linear-cuneate. veins single in each see, bearing below 



A. SEPTENTBIONAin Hoffm. middle a solitary oblong sorue L Fla. 



Stipes densely tufted, 3-6' long, slen- Synonyms: A. rhizophyllum myri^ 



der, naked, ebeneous toward base; fronds lum Mett. Caenopteris myriophyllum 



Irregularly forking. consistin- of 2-5 Swz Fl Ind Occ 3:1626 (1806). 



narrowly linear rather rigid segs, which A. CIOUTABIUM, Swz, Prodr Veg Ind 



are entire or more frequently cleft at Ace 130 (1788). - O vwi- 



end into few long narrow teeth; sori Stipes tufted, 4-8' long, & ish, ^ nak ed 



elongate, near margin, com facing each fronds 6-15' long, 4-6' broad, with 10-15 



other in pairs, com 2-3 to each seg. NM- horizontal pinnae on each side, lower 



Colo. ' ones 2-3' long, 1' broad, cut down to 



III. -Pinnae num, linear or llnear-ob- rachis Into linear or oblong segs, which 



long acute or acuminate. are once or twice cleft at apex; rachis 



A. ANOUSTirOLIUM Michx. compressed, oft winged; sori principally 



Stipes 1 or more long, brownish, in 2 rows. Fla. 



slightly scaly below; fronds l%-2 long, Section ATHYBIUM Roth. See Athyr- 



4-6' broad, lanceolate-oblong, flaccid; ium. ,-,,/-, o KO 



pinnae 20-30 pairs, linear-lanceolate. ATHBYBIUM Roth, Tent Fl Germ 3:58 



acminate, entire or crenulate, those of (1800). 



fertile fronds narrower; texture thinly Veins free; sori more or less curved, 



herbaceous; sori linear, 20-40 each side sometimes horseshoe-shaped, oft cross- 



of midvein. New England; Ky; Wis. ing to outer or lower side of fr ing vein- 



