SCHIZAEACEAE (CURLy GRASS FAMILY) 45 



1. D. punctil6bula (Michx.) Gray. (Hay-scented Ferx.) Fronds minutelv 

 glandular and hairy (5-10 dm. high), ovate-lanceolate and acumhmre in om^ ne^ 

 pale green very thni, with strong chaffless stalks rising from sh. e exten^v iJ 

 creeping naked rootstocks, mostly bipinnate ; primary Jinnae lanceolate noi.tef 

 the secondary pmnatifid into oblong and obtuse cut-toothed lobe f'ru ofs 

 n.mute each on a recurv^ed toothlet, usually one at the upper margin of each 



m moist and shady places, N.S. to Ala., rarer westw. to Minn.-l^ond s^vee 

 scented especially n drying. Forma cristata (Maxon) Glut; has ?he p nna; 

 cr state-forked at tip. -Mass. and Vt. Forma schizophylla Cl.Ue las fronds 

 often more deeply forked and the ultimate segments incised.^ Mass! and Ct 



18. ONOCLEA L. 



P.l?T"v?'^ ^''™; f" ^^ejated receptacles, forming roundish sori imperfectly 



dSnf .f Ir-l tronds erect, rigid, with contracted pod-like or berry-like 

 divisions at first completely concealing the sporangia, and at last, when dry 

 ana mdurated, cracking open and allowing the spires to escape Sterile 

 fronds fohaceous. Rootstocks creeping and constantly form in 'Tew nl an s 

 (Name employed by Dioscorides for some probably boraginaceousV^nl)^ 



§ 1. EUONOCL^A Hook. Fertile fronds bipinnate. 



^r.^: .?'u^T^}}^^\ ^'- C^^^^siTivE Fern.) Fronds scattered ; the sterile ones 

 long-stalked, the lamma 1-8 dm. long, deltoid-ovate, pinnatifid into a few 

 Ob ong-lanceolate sinuately lobed or nearly entire segie^its ; vehis mici^lated 

 ned /inilT'i'"' ^T^^ 'f-^"^' contracted, closei; bipinnate, the pin ud's 

 V a2 \ % berry-hke bodies. -Moist meadows and thickets, verv common 

 rounded lohP^^T ^''^ ^^^q^"^^' especially bipinnatifid foliaceous fronds with 

 r;^s^'oSr(s'cTkuhrr """'""' '''^'"' sori, -the so-called var. 



§2. STRUTHIOPTERIS Mett. Fertile fronds pinnate. 

 2. 0. Struthi6pteris (L.) Hoffm. (Ostrich Fern.) Fronds growin- in a 



torVtt' base" wit r'"^"r"^ ^^'' "'f- ^^^^^^^' ^^'°^^^^ lanceolate! narrowed 

 veSs sTmnTe.' ^^^^./^^f ^^ l"^e^r-lanceolate pinnatifid pinnae ; veins free, the 

 vemiets simple; fertile fr.md shorter, with pod-like or somewhat neck ace 

 t's?w Tir- ^''^^f^ Todaro.)- Alluvial soil, Nfd. T Va^^nSt 

 bearl;onds^Ihe~"n?xt ;ear!^(Eur:s?a.r^' underground stolons, which 



SCHIZAEAcEAE (Curly Grass Family) 

 Sterile fronds tufted and linear-filiform {Schizaea) or resembling a twining 

 aerial stem with alternate paired palmately lobed leaves {Lygodiiun). Sporangia 

 borne m double rows on narrow fertile segments, ovate, sessile, having a com- 

 plete transverse ring at the apex, and opening by a longitudinal slit. 



1. Sohizaea. Sterile fronds rigid, simple or dichotomously branched. Plant dwarf, not 



ciinihiriir. 

 9 



Lygodium. Fronds with paired alternate stipitate leaf-like segments. 



1. SCHIZAEA Sm. Curly Grass 



cleft^'JmWr v'^ff^^ r"^^' «f"ate-rayed at the apex, opening by a lonoitudinal 

 ?)vv divtston;^^^^^^ ''''''^'" ^ ^.'^^^^^ row along the single vein of the nar- 



row divisions ot tiK. pinnate ^or radiate) fertile append a-es to the slender and 



