FILICE3. 44& 



side towards tlic .apex of the lobe, somewhat jagged. — Tuft- 

 ed Ferns, with slender and delicate 2 to 3-pinnate fronds, 

 having cut-toothed lobes. 



1. C. BULBIFERA, Bernh. Bulbous Bladder Fern. 



Frond lanceolate, elongated, 1 to 2 feet long. 2-pinnate; pinnce lanee-ohlonf, 

 pointed, horizontal, 1 to 5 inches long: rachis often bearine; bulblets <udern«uth, 

 wingless : pinnules crowded, oblonsr, obtuse, toothed or pinnate. 



Shaded moist rocks, common. Julj. 



2. C. fragilis, Bernh. Weak Bladder-Fern. 



Frond oblong-lanceolate, 4 to S inches long, beside the stalk which 19 about the 

 une length, 2 or 3-pinnate ; the pinna and pinnules -ovate or lanceolate in outline, 

 Irregularly pinnatifid or cut-toothed, mostly acute, decurront on the margined or 

 winged rachis. 



Shaded cliffs, common : very variable. July. 



10. WOOD3IA, R: Brown. 



Dedicated to Jos'ph W>odt, an English botanist. 



Fruit-dots globular, borne on the back of- simple -forked" 

 free veins. IS'DUSIUM ti'in, attached by its base all around* 

 tht reeeptacle, open or early bursting through at tht top or 

 eentre, the orifice or edge irregular or jigged, and usually 

 tut-fringed with long irairs which involve the sporangia. -w- 

 Small and tufted pinnattly -divided Ferns. 



1. W. obtusa, Torr. Obtuse Woodtia. 



Trends to IS incheshi»h,broadly-lanc90late,minutely ajlandu'ar-hairy, pinnni*; . 

 pinnct rather remote, triangular-ovate cr oblong, 1 inch or more long, bluntish., 

 plnnately parted: pinnules oblnnr. very obtuse, Tcnaiely pinnatifid-toothed, with -. 

 a single smooth fruit-dot on each rounded minutely toothed lobe near the tdnui; 

 etalk end rachis a little chaffy. 



Rocky banks and cliffs. July. 



2. W. Ilvensis, R. Brown. OUong-leaved Woodsia^ 



Froni 2 to 4 inches Ion?, 1 inch wide, smoothish and green abeve. oblong lan^c- . 

 lete. thickly clothed underneath as well as the stalk with rusty bristle-like chaff, 

 pinnete; pinna* crowded, cblang. obtuse, sessile, pinnately parted, the. numeroui 1 . 

 erowded pinnules oblong obtuse, obscurely crenate, the fruit-doit near the margin 

 •oraewhat confluent when old. 



■xposed rocks frequent. June. 



11. DRYOPTERIS, Adans., Schott. Wood-Firn. 



•r. irus, an oak, or tree in general, and plerit, Fern ; growing in woods. 



Fruit-dots round, borne on the back or near the apex cl' 

 •he simple and free pinnate veins or their forks. Indubium, 

 Cattish, round-kidney-shaped at the sinus, opening round thr 

 margin. — Fronds 1 to 3-pinnate, of thin or thinnish texture, 



• V$ins simple and straight or simply forled. 



1. D. Thelypteris, Gray. 



Frond pinnate, lanceolate in outline ; the horizontal pinna freduaHy dlmfnleV 

 iaf it length from near the two to th* ajex, se«i:e v lLn«ax-]*nceoItie, deejlj-^a 



