3GG KKKN FAMILY. 



rhomboid-ovate, very often halberd-shaped, the end ones of the primary pinn.-e 



iniK-h tin- largest, often \'-"2' long and V-l' broad; stalk and branches hiaek 

 and ]i-il shed, smooth; involucre rather narrow. 







d. WOODWARDIA, < 'II AIX-FERN. ( Named in honor of Thomas J. 

 \\'i,<K/tnin/, an English botanist oi' the la.-t century.) A small genus of rather 



large I-Vrns, all natives of the N. temperate zone. 



W. Virginica. Tall, growing in M\amps N. & S. : sterile and fertile 

 frond-- alikr, ovate in outline, pinnate, with hui'-eolate deeply pinnatitid pinna:; 

 lobes oblong, obtuse; veins rcti' ulated, forming a single row of meshes along 

 the niidril)s of pinna; and of lobes, the outer vein-lets free; fruit-dots oblong, 

 close to the midribs. 



W. angUStif61ia. Range, &c. of the last, but less common : fronds 6 - 

 10' long,' 4' -IV broad, pinnatilid almost to the winged rhachis into 17-27 lobes, 

 which arc broadly lanceolate and with copiously reticulated veins in the sterile 

 frond, but are narrowly linear in the fertile, and with a single row of narrow 

 meshes next the midrib ; fruit-dots linear, sausage-shaped, one iu .each mesh. 



10. DOODIA. (Named in honor of Samuel Doody, an early English Crypto- 

 gamic botanist.) Small Ferns, cult, from Australia and New Zealand. 



D. caudata. Fronds 9' -15' long, linear-lanceolate, on dull-black nearly 

 smooth stalks, pinnate with many linear serrate and nearly sessile pinna?, which 

 fire about 1'long, often slightly auriculate at base, the lower ones rather trian- 

 gular, distant ; fruit-dots in a single row next the midrib. 



D. aspera. Stalk Mack and rough with small ragged points ; fronds broadly 

 lanceolate, rather coriaceous, harsh to the touch, pinnatirid to the rhachis ; di- 

 visions crowded, oblong-linear, spinulose-serratc, lower ones gradually smaller; 

 fruit-dots not close to the midrib, sometimes a second row next the margin. 



11. ASPLENIUM, SPLEENWORT. (Name from the Greek; refers to 

 supposed a tion on the spleen.) A very large genus, the size of the species 

 ranging from quite small up to very large and even tree-like. 



1. Frond* undivided, large and skowy : cidt.fiom /-,'<;*/ Indies, S/-c. 



A. Nidus, HIKD'S-XEST FERN. Fronds numerous, broadly lanceolate, 

 2 -4 loiiir, 4' -8' wide, entire, short-stalked, arranged in a crown around the 

 central upright rootstoek ; fruit-dots very narrow, elongated, crowded, running 

 from the stout midrib obliquely half-way to the margin. 



2. l-'ruinlx ximill, pinnatijid below, taperiny into a long entire point native. 



A. pinnatifidum. Verv rare, near Philadelphia, and sparingly W. & S., 

 especially along the Alieghanies : fronds 3'- G' lonir, i"- U' wide at the base; 

 lobes roundish-ovate mostlv obtuse; fruit-dots small, irregular. 



$ :i. I-' mink simply pinnate.. 

 * fim/f Ferns, 4'- 15' fiii/ft : nil c.rn [>t tin- lust arc wild species. 



A. Trichomanes. Common, forming dense tufts in crevices of shady 

 rock> : fronds linear. 4' -8' long, with black and shining stalk and rhachis, and 

 manv roundish or oblong slightly crcnated or entire pinna-, about ^' long and 

 about half as broad ; fruit-dots few to each pinna. 



A. ebdneum. Common in rocky woods: fronds linear-lanceolate, nar- 

 rower at the base, 8'- 15' long, l'-2'widej slalk dark and polished; pinna; 

 many, linear-oblong, often slightly curved, linely serrate, atiriclcd on one or 

 both sides at the base ; fruit-dot< numerous 



A. flabellif'61ium. Cult, from Australia : lax, the rhachis often pro- 

 Ion-_;ed and rooting at the verv ein! , fronds linear; pinna- sharply wedge-shaped 

 at the base, the broad and rounded end crcnated ; fruit-dots irregularly radiat- 

 ing from the base of the pinna-. 



* * lAirge Ferns, 1 - 3 high. 



A. angustifblium. Rich woods N., and S., mainly along the mountains : 

 fronds thin, long-lanceolate, pinna; many 3' - 4' long, linear-lanceolate from a 



