FILICES. 695 



rent, terminal often 3-fid: veinlets in a loose network with free appendages; sori serial 

 along the veins : indusium cordate-orbicular.— Plum. Fil. t. 145. — 3'-6' high; segments 

 usually 6"-12" long, lf-2" broad.— Hab. Jamaica!, Wits. ; Dominica !, Imr., S. Vincent 1, 

 GW/af. ; Trinidad !, Lockh. ; [Cuba ! to French islands !, Sieb. Mart. 358 ; Mexico 1 to 

 Brazil! ; Galapagos!]. 



272. A. cicutarium, Sw. Leaf pinnatisect below the pinnatifid summit : segments 

 S-6-jugal, pinnatifid : lobes oblong or ovate, blunt : veinlets in a loose neticork, most de- 

 void of free appendages ; sori dorsal, serial along the veins : indusium cordate-orbicular. 

 —Plum. Fil. t. 150.— Poly podium, L. P. appendiculatum, Sw. 



a. latifolium, Pr. Leaves gradually dilated downwards : inferior segments ovate-oblong 

 or oblong ; indusium large, roundish. — 2'-4' high ; inferior segments usually 6" long, 2" 

 broad. 



0. coriandrifolium, Sw. Leaf oblong: segments deltoid-roundish; indusium small, 

 roundish. — A. hippocarpis, Sw. — &'-l\' high; inferior segments usually 1" diam., but 

 passing into a. 



Hab. Jamaica {Sw.), iu mountain-woods ; Trinidad {Metten.), [Cuba !, Mexico !, Panama !, 

 Ecuador !]. 



273. A. apiifolium, Schk. Leaf pinnatisect below the pinnatifid summit, 2-pinnati- 

 sect at the base : primary segments pinnatipartite, secondary oblong-lanceolate, obtusely 

 scrrate-piimatifid, bluntish : veinlets in a loose network, devoid of or provided with free 

 appendages ; sori terminal, sunk into the leaf, rather scattered : indusium reniform-roundish. 

 — Schk. Crypt, t. 56. b. sin. — A. dilaceratura, Kze., Metten. — Stout; primary segments 

 about 10"-6" long, 3" broad. — Hab. Jamaica !, all coll., in the mountains, on wet rocks ; 

 [Portorico ! ; Guatemala ; Pacific islands]. 



274. A. trifoliatum, Sw. Leaf ternati{-pinnati)-sect (or 3-partite) : segments l(-2)- 

 jugal, terminal ovate or ovate-oblong, poiutleted, sinuate-3-lid, lateral semicordate, often 2- 

 fid: veinlets in a loose network with free appendages; sori serial along the veins and 

 scattered : indusium peltate-orbicular, rarely emarginate. — SI. t. 42, t. 26, /. 2. Plum. Fil. 

 t. 148. Schk. Crypt, t. 28, t. 28. b. Hook. Gen. t. 33.— Polypodium, L. A. hera- 

 cleifolium, W. {Plum. Fil. t. 147) ; the form with 2-jugal segments. A. fimbriatum, W. 

 {Plum. Fil. t. 149 : A. Plumierii, Pr.) -. a form with 3-partite leaves and the indusium 

 often emarginate. — 1'-2' high, very variable ; terminal segment usually 8"-6" long, 6"-3" 

 broad, lateral smaller, asymmetrical, often distant. — Hab. Bahamas ; Jamaica !, Hartw., 

 Al- ; Domiuica !, Imr., S. Vincent!, Guild., Barbadoes!; Stephan ; [Cuba! to French 

 islands ! : Mexico ! to Peru !]. 



Woodsia Brownii, Metten. {Hypoderris, J. Sm., Hook. Gen. t. 1, Ic. t. 675, 676), is a 

 remarkable Fern, confined to Trinidad!, Cr., Lochk. (in shady, rocky lanes). Though dis- 

 tinguished from A. trifoliatum, by the character of Woodsia (indusium. iuferior all round, 

 fimbriate, terminal none), I have supposed it to be perhaps a dimorphic state of it with the 

 flat receptacle transformed and the proper indusium suppressed (Gutting. Nachrichten, 1863, 

 P- 104). Other characters however are : a tripartite leaf, and a dark-brown, densely palea- 

 ceous and hairy petiole, while in A. trifoliatum, only the leaves of young plants are tripar- 

 tite, the petioles stramineous-shining, and the palese confined to their base. 



** Leaf S-partite-frinnatifid. 



275. A. pedatum, Besv. Leaf 3 -partite-piunatifid, ovate, bluntish, cordate or sub- 

 truncate at the base, subcoriaceous, glabrous : lobes ovate or oblong, repand, lowest larger, 

 often sinuate, pinnatifid or semicordate-bifid : veinlets sparingly areolate, with free append- 

 ages : petiole'shining-blackish ; sori serial-scattered, most terminal : indusium reniform with 

 a broad sinus, coriaceous.— Kze. Farnkr. t. 75.— 6"-12" high long-petioled ; leaf 2"-3" 

 broad at the base.— Hab. Jamaica !, Bancr., Pd. ; [Cuba !, Haiti]. 



*** Leaf entire. 



276 A Fadyenii Metten. Leaf undivided (rarely sinuate), sterile lanceolate-oblong 



or spathuiate, tapering into a short petiole, entire or repand,/^ longer lanceolate: vein- 



lets in a network, fertile meshes 1 -serial, their inner appendages thickish at the summit ; son 



1 -serial along the midrib, terminal: indusium reniform or orb.cular, usually with a broad 



