FILICES. ^ 665 



wholly channelled-i-gonal, rusty-hairy or glabrescent ; sori roundish, occupying the crena- 

 lures of the upper margin, interrupted hy its narrow sinuosities. — tloolc. Spec, t, 71. A : 

 segments larger than in our specimens. — 2-8' high; secondary segments 6"'-8"' long, 3"'t 

 4'" broad. — Hab. Jamaica! {Hook.) ; [Guiana 1, Brazil!]. 



95. A. pnlverulentum, £, Leaf 2-pinnatisect : primary is^wen^j 3-6-jugal, produced ^ 

 into a narrow, serrate apex : secondary about 40-jugal, herbaceous, dimidiate-oiiang, usually i 

 serrate at the bluutish, subfalcate apex, snbsessile : petiole i-gonal, polished, rusty-hairy ; ' 

 sori continuous, confined to the upper margin, usually terminated below the apex. — Plum.. 

 Fit. t. 55. SchL Crypt, t. 119.— 1'-3' high ; secoudary segments. 6"'-5"' long, 2'" broad, 

 dark-green. — Hab. Jamaica !, Wiles, Wright ; [Cuba ! to French islands ; Mexico 1 to 

 Brazil !]. 



96. A. obtusum, Desv. Leaf 2-pinnati8ect : primary segments 3-8-jugaI : secondary 

 15-30-jugal, leathery-chartaceous, dimidiate-oblong, blunt, subsessile, terminal small, bluut- 

 ish, sterile serrulate along the upper margin and round the apex : petiole channelled-i-gbnal, 

 ebeneous, glabrous : rhachis pubescent or glabrous ; sori contiguously interrupted along the 

 upper margin and round the apex (rarely continuous). — Mook. Grev. Ic. t. 188. — 1'-2' 

 high ; secondary segments usually 4"'-5'" long, 2'" broad.^HAB. S. Vincent ; Trinidad I, 

 Loekh., Sch. ; [Panama I to Brazil !]. 



97. A. cristatum, L. leaf 2-pinnatisect, once 3-pinnatisect at the base (-pinnatiseot) : 

 primary segments 3-6-jugal, ultimate lO-ZO-jugal, chartaceous, dimidiate-oblong or half- 

 ovate, dentate above at the sterile, crenate-lobulate at the fertile part, shortly petiolulate, 

 terminal subentire, mostly narrowly acuminate : petiole slender, scabrous, channeUed-half- 

 cylindrical ; sori distantly interrupted along the upper margin, or from it round the apex, 

 half-oval or shortly oblong, occupying the middle part of the truncate lobules. — Plum. 

 Ml. t. 97.— A. striatum, Sw.—W-?,' high ; segments 8'''-4"' long, 4"'-3"' broad.— Hab. 

 Jamaica!, Wiles, March; [Cuba! to Venezuela!]. 



98. A. Kunzeanuiu, Kl. Leaf 2-piunatisect to once 3-pinnatisect at the base ; ^tA- 

 wjxrj "segments 5-3-jugal, ultimate Q— 12{--20)-juga\, hevhaceous, shortly dimidiate-oblong 

 or half -quadrate, blunt, sharply serrate at the summit, lobulate at the fertile upper margin, 

 shortly petiolulate, uppermost smaller or terminal acuminate : petiole slender, scabrous, 

 channeUed-half-cylindrical ; sori distant along the upper margin, semilunar-reniform, oc- 

 cupying the middle part of broadly emarginate lobules between the marginal angles. — 

 Perhaps a form of the preceding, but segments less approximate; l'-2' high; segments' 

 6"'-4''' long, 4"'-3"' broad.— Hab. Jamaica ! {flook) ; [Cuba !]. 



99. A. microphyUuin, /raaj^. Leaf 2.pinnatisect or snb-3-pinnatisect at the base: 

 primary segments 9-6(-3)-jugal, ultimate sub-Zd-jugal, herbaceous, dimidiate, shortly half- 

 ovate-oblong, bluutish, denticulate or subentire, lobulate at the fertile part, shortly petiolulate, 

 uppermost much smaller : petiole slender, scabrous, channelled-subcylindrical ; sori few-soli- 

 tary, confined to the upper margin, subeontiguous, half-oval or oblong, occupying nearly the 

 whole breadth of the truncate lobules. — Schk. Crypt, t. 118. — A. striatum, Schk. A. pyra- 

 midale, W. (Plum. Fil. t. 54): probably.— 2'-3' high; segments 4"'-3"' long, 3'''-2"' 

 broad. — Hab. Jamaica !, Prf., iaree ; [Cuba!]. 



100. A. crenatum, W. Leaf 8(-"4")-pinnatisect, 2-pinnatisect above: segments 

 distant, ultimate 15-30-jugal, herbaceous, dimidiate-ovate-ollong, bluntish, inciso-lobulate ( 

 at the fertile upper margin, shortly petiolulate : petiole channelled-subcylindrical, glabrous ; ' 

 rhachis slightly hairy ; sori semilunar-reniform, occupying the entire breadth of the 

 broadly emarginate lobules, subeontiguous, separated by the narrow indentations of the 

 margin. — Plum. Fil. t. 53. Book. Spec. t. 83. c. — A. Wilesianum, Sook. 1 — 2' high ; seg- 

 ments 8'" long, 4"'-3"' long. — •Hab. Jamaica !, Wiles, Lamb. ; [Mexico ! to Peru !]. 



101. A. polyphyllum, W. Leaf 3-4-pinnatisect : ultimate segments 20-12-jugal, 

 chartaceous, dimidiate-oblong, rounded at the apex, inciso-lobulate at the fertile upper 

 margin, shortly petiolulate : petiole and rhachis glabrous, ebeneous ; sori roundish, occupy- 

 ing the middle part of the emarginate lobes between their blunt margins, distant. — Soojc. 

 Spec. t. 83. ^.—Segments 6"'-8'"long, 3'" broad.— Hab. Trinidad {Hooh) ; [Venezuela !]. 



