662 FILTCES. 



broad. — Hab. Bahamas !, Swains. ; Jamaica !, all coll., on wet rocks ; [Cuba I to French 

 islands ! ; Pacific islands !] . 



74. D. fumarioides, Sw. Scandent, diffuse, prickly ; leaf submembranaceous, gla- 

 brous, 3-2-pinnatisect : segments pinnatipartite, ultimate 2-3-parlile with cuneate, emargi- 

 nate, or bifid divisions, the latter with a simple or forked rib, oblong, bluut, entire ; indu- 

 sium obversely half-round, as broad as the leaf-division, equalling its summit, supported by 

 an expanded, simple vein. — Schk. Crypt, t. 129. inf. — Ultimate segments 2'" long, its 

 divisions spreading, 1'" broad at the summit. — Hab. Jamaica !, Mac/., Al., Wiles, on dry 

 hills; [Cuba!]. 



75. D. aculeata, Sm. Scandent, diffuse, prickly ; leaf herbaceous, glabrous, 3-2- 

 pinnatisect : segments inferior piunatipartite, ultimate cuneate-roundish, unequally 2-3- 

 lobed: lobes blunt or bluutly emarginate, shortly obovate, entire, with a twice- or more 

 forked rib ; indusium roundish, exceeded in breadth by the leaf division, equalling its 

 summit, supported by an expanded, simple vein. — SI. t. 61. Hook. Spec. t. 54. B. 

 Adiantum, L. — Habit of the preceding : growth indefinite : ultimate segments little 

 larger, but more roundish above the broadly cuneate base. — Hab. Jamaica!, Bancr., in dry 

 savanuahs ; Dominica !, Imr. ; [Cuba ! to Guadeloupe !]. 



12. SACCOLOMA, Kaulf. 



Sori half-roundish, in a series lining the leaf-margin, inserted into the summit of a veinlet 

 or between its forking •. indusium inferior, dimidiate, reniform, laterally free. — Veins forked 

 or simple, anastomosing between the sori or free. 



76. S. eleg-ans, Kaulf. Leaf tall, pinnatisect, thin : segments lanceolate, entire, 

 below the serrate, narrowly acuminate apex : veins simple or 2-partitc, closely subtrans- 

 verse, anastomosing between the approxitnate sori, and sending short, rectangular branch- 

 lets iuto the membranaceous, narrow, entire, fertile margin. — Hook. Gen. t. 58. /. 1-4. 

 Kze. Farnkr. t. 41. — Davallia Saccoloma, Spreng. — Climbing to the height of 20' (Fd.) ; 

 leaf (the petiole included) about 6' long: segments 8"-15" long, l"-2" broad.— Hab. 

 Jamaica !, Pd., Westmoreland, S. Georges ; Trinidad !, Cr., Tocuche ; [Panama ! to Brazil !]. 



77. S. Imrayana, Hook. Leaf pinnatisect, herbaceous : segments oblong-lanceolate 

 or ovate-oblong, blunt or bluntish, crenate above the cuneate base: veins forked, distantly 

 ascending, free, excurrent into the indusium, not into the leaf-margin ; sori somewhat dis- 

 tant, each below a crenature. — Hook. I. c. f. 5, 6; Spec. t. 49. A. — Petiole brown- 

 shining, 8"-12" long; leaf 5"-8", segments l"-2" long, the latter 6"'-8'" broad— Hab. 

 Dominica !, Imr. ; [Guadeloupe 1]. 



13. LINDSAYA, Dry. 



Sori linear, liuiug the flat leaf- margin, inserted into a special anastomosis of veinlets : in- 

 dusium dimidiate, inferior, externally opcu. — Most pinnate leaf-segments subequal, and veins 

 dichotomous in the West Indian species. 



78. I*, trapeziformis, Dry. Leaf 2-pinnatisect, membranaceous : segments dimidiate- 

 oblong, blunt or bluntish : inferior and basilar margin truncate, superior curved, fertile -.petiole 

 4-sided ; sori continuous, extending to the summit. — Hook. Gen. t. 63. A. — Primary seg- 

 ments 6"-l 2" long, 1V'-1" broad. — Hab. Jamaica!, Lambert; Dominica!, Imr. ; Trini- 

 dad !, Lockh. ; [Cuba ! to Brazil ! ; East Indies !]. 



79. la. quadrangularis, Radd. Leaf 2-pinnatisect, membranaceous : segments di- 

 midiate-obfong, blunt : inferior and basilar margin truncate, superior straightish, fertile : 

 petiole As-sided; sori interrupted, extending to the summit (or continuous). — Radd. Id. 

 Bras.t.lAe. — L. Klotzschiana, Moritz. — More slender than the preceding; primary seg- 

 ments 4"-8" long, 8"'-10"' broad.— Hab. Dominica, S. Vincent \, Guild, ; [Guadeloupe ! ; 

 Panama ! to Brazil !] . 



80. Ij. guianensis, Dry. Leaf 2-pinnatisect, submembranaceous, somewhat Jlexuose : 

 segments dimidiate-ovate, rounded at the top, cuneate at the base: margins straightish or 

 slightly curved, superior fertile : petiole cylindrical ; sori continuous, not quite extendiug to 



