FILICES. 665 



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

 lures of the upper margin, interrupted by its narrow sinuosities. — Hook. Spec. I, 71. A : 

 segments larger than in our specimens. — 2-3' high ; secondary segments 6"'-8"' long, 3'"- 

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



95. A. pulverulentum, L. Leaf 2-pinuatisect : primary segments 3-6-jngal, produced 

 into a narrow, serrate apex : secondary about 40-jngal, herbaceous, dimidiate- oblong, usually 

 serrate at the bluntish, subfalcate apex, subsessile: petiole Agonal, polished, rusty-hairy; 

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

 Fil. t. 55. Schk. Crypt, t. 119.— l'-3' high ; secondary 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-pinnatisect : primary segments 3-8-jugal : secondary 

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

 ish, sterile serrulate along the upper margin and round the apex : petiole channel 't 'ed-3-gonal, 

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

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

 high ; secondary segments usually 4"'-5'" long, 2"' broad. — Hab. S. Vincent ; Trinidad !, 

 Lockh., Sch. ; [Panama ! to Brazil !]. 



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

 primary segments 3-6-jugal, ultimate 10-20-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, channelled-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. 

 Fil. t. 97.— A. striatum, Sw.~ l£'-3' high ; segments 8'"-4'" long, 4"'-3'" broad.— Hab. 

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



98. A. Kunzeanum, Kl. Leaf 2-pinnatisect to once 3-pinnatisect at the base ; pri- 

 mary segments 5-3-jugal, ultimate 6-12(-20)-jugal, herbaceous, 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, 

 channelled-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; 1-2' high; segments 

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



99. A. microphyllum, Kaulf. Leaf 2-pinnatisect or sub-3-pinnatisect at the base: 

 primary segments 9-6(-3)-jugal, ultimate sub-30-jugal, herbaceous, dimidiate, shortly half- 

 ovate-oblong, bluntish, 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, subco'ntiguous, 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 !, Pd., Lane ; [Cuba!]. 



100. A. crenatum, W. Leaf 3 (-"4") -pinnatisect, 2-pinnatisect above: segments 

 distant, ultimate 15-30-jugal, herbaceous, dimidiate-ovate-oblong, 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, subcontiguous, separated by the narrow indentations of the 

 margin.— Plum. Fil. t. 53. Hook. Spec. t. 83. c— A. Wilesianum, Hook. 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 ; sort roundish, occupy- 

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

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



