FILICES. 695 



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

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

 nsnally 6"-13" long, H"-2" broad.— Hab. Jamaica !, Wils. ; Dominica I, Imr., S. Vincent !, 

 Guild.; Tnnidad!, LocU.; [Cnba! to French islands!, Siei. Mart. 358: Mexico! to 

 Brazil ! ; Galapagos !]. 



\^ 272. A. cicutarium, Sw. Leaf pinnatisect below the pinuatifid summit : segments 

 Z-6-jugal, pinnatifid : lobes oblong or ovate, blunt : veiulets in a loose network, most de- ^ 

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

 —Plum.Fil. t. 150.— Polypodium, L. P. appeudicnlatum, Sw. 



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

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

 broad. 



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

 roundish.— A. hippocarpis, -Sw.— 6"-li' high; inferior segments usually 1" diam., but 

 passing into a. 



Hab. Jamaica (Sw.), in mountain-woods ; Trinidad {Metten.), [Cuba I, Mexico !, Panama 1, 

 Ecuador !]. 



273. A. apiifolinm, ScM. Leaf pinnatisect below the pinnatifid summit, 2-pinnati- 

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

 serrate-pinnatifid, bluntish : minlets 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. Ai]2.aexaixna, Kze., Mette^i. — Stout; primary segments 

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

 [Portorico ! ; Guatemala ; Pacific islands]. 



y^ 274. A. trifoliatum, iSw. lJeafternati(^-pinnati)-sect{ovZ-^axi\\,(i):segments\{-^)- 

 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 eniarginate. — 5/. t. 43, 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. FU. t. 147) ; the form with 2-iugal 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 I, JSartw., 

 At.; Dominica!, Imr., S. Vincent I, Guild., Barba^oes!; Stephan ; [Cuba! to French 

 islands I ; Mexico ! to Peru I]. 



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

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

 tinguished from A. trifoliatum, by the ■ character of Woodsia (indusium inferior 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 (Gotting. Nachrichten, 1863, 

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

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

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



** Leaf ?>-partite-pinnatifid, 



275. A. pedatuiu, D^m. I-eaf 3 partite-pinnatifid, 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. i.75. — 6"-12" high, long-petioled ; leaf2"-3" 

 broad at the base. — Hab. Jamaica !, Bancr., Pd.; [Cuba 1, Haiti]. 



*** Leaf entire. 



276. A. Fadyenii, Metten. ieo/' undivided (rarely siawte) , sterile lanceolaie-oilong 

 or spathulate, tapering into a short petiole, entire or repand, /«rfJ/« loriger, lanceolate : veiu- 

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

 1-serial along the m\&t\!a, terminal : indusium reniform or orbicular, usually with a broad 



