FILICES, 6S1 



190. A. firmum, Kse, Leaf pinnatiaect : segments lanceolate- er oblong, bluntish at 

 the tapering point, dupHcato-crenate-serrulate, dimidiate-cuneate (rarely amicM-trupcate) 

 at the base, lowest conform : rhapUs margined: veins forked, inferior dichotomous, branches 

 terminated near the margin with a slightly thickened summit : petioll pale ; sori linear, 

 distant from the midrib and more so from the margin. — Hook. Spek t. 174.— A. abscis- 

 sum, Kl.!, Melten.l, W. {ex parte).— Little distinct from the' preceding by bluntish seg- 

 ments ; segments 2"-l" long, 6'" broad ; sori 2"'-li"' long.— Hab. Jamaica 1, Fd. ; [Cuba ! 

 to lYench islands ; Mexico ! to Brazil !]. 



191. A. Isetum, Sw. Leaf pinnatisect : segments trapegoid-oblong, blunt or bluntish 

 at the summit, duplicato-crenate-serrate along the upper margin and round the summit, 

 dimidiate-truiicate aud upwards angled or slightly auricled at the base, lowest conform : 

 rhachis margined ; veins forked aud simple, lowest dichotomous, branches terminated near 

 the base of the serratures with a thickened summit; petiole purple ; nonlinear, interme- 

 diate between the midi-ib and the margin. — Schk. Crypt, t. 70. Book. Spec. t. 173. — 

 a: abscissnm, Radd. {ex PI. Spruce.), W. (ex parte). A. Schkuhrianum, Pr. — Segments 

 1"-14" long, 6'" broad at the base; sori li"'-2J"' long.— Hab. Jamaica!, Wils.; Domi- 

 nica !, Sieb., Imr., S. Vincent I, Ghiild. ; Trinidad !, Or. ; [Cuba 1 to French islands ! ; 

 Mexico I to Brazil !]. 



192. A. obtusifolium, L. Leaf pinnatisect : segments oblong or oblong-lanceolale, 

 bluntish, serrate, upward produced or auricled and dimidiate-truncate at the base, lowest 

 conform : rhachis flattish, broader near the base of the segments : veins dichotomous or 

 forked, branches almost excurrent into the serratures with a thickened summit: petiole 

 brown ; sori linear, intermediate between the midrib and margin. — Plum. Fil. t. 67. Hoole. 

 Grev. Ic. t. 239. Hook. Spec. t. 169. /. 4.— Segments nigrescent, 2"-l" long, 8"'-10"' 

 broad above the auricle; sori 4"'-3"' long. — Hab. Dominica!, Imr., in moist places; 

 [French islands I, Sieb. Mart. 363 ; Mexico to New Granada ! and Brazil]. 



193. A. alatum, Kth. Leaf pinnatisect : segments oblong or ovate-oblong, bluntish, 

 . oppressed-serrate or duplicato-serrate, contracted at the oblique or subequal, rounded base,. 



lowest shorter : rhachis vnnged : wing decurrent along the pale or rusty petiole : veins 

 forked, terminated within the serratures with a slightly thickened summit ; sori linear, dis- 

 tant from the midrib and more so from the margin. — Hook. Grev. Ic. t. 137. — Segments 

 1"-14" long, 4"'-8"' broad, superior gradually decrescent; sori 2"'-lV" long. — Hab. 

 Jamaica !, Macf., Pd., Bancr. ; S. Vincent !, Guild. ; [Venezuela I to Brazil !]. 



194. A. marinum, L. Leaf pinnatisect: segments oblong (-ovate) or oblong -lanceo- 

 late, blunt or bluntish, serrate or duplicato-serrate, truncate at the upper, cuneate at the lower 

 side of the base, lowest shorter : rhachis margined, winged above : veins forked, terminated 

 near the base of the serratures with a thickened summit : petiole shining-purple or black ; 

 sori oblong, intermediate between the midrib and margin : indusium tapering at the extre- 

 mities.—/.'?/, t. 33./. 1. Schk. Crypt, t. 68. im/.— Segments 8"'-14"' long, 4'" broad at the 

 base ; sori 2"'-l"' long. — Hab. Jamaica {SI), on the rocky coast near Bath ; S. Vincent 

 {Hook) ; [coasts of the Atlantic from Orkney islands to S. Helena, and New Brunswick to 

 South Brazil]. 



195. A. lunulatuiu, Sw., Kze. Leaf pinnatisect : segments numerous, oblong, blunt, 

 crenate-terete along the upper margin and round the summit, dimidiate-truncate at the 

 base, lowest shorter : rhachis subterete, narrowly winged: veins forked and simple, lowest 

 dichotomous, branches terminated near the base of the serratm'es : petiole pale or pale- 

 purple, margined; sori linear, intermediate between the midrib and margin : indusium 

 rounded at the extremities. — Eadd. Fil. Bras. t. 51. /. 1. — A. erectum, Bory, Book., Eat. 

 PI. Wr. {non Metten.). A. hrasiliense, Badd.—Sesmeais 7"'-10"' long, 2"'-4"' broad ; 

 son 2'" long. — Hab. S. Vincent !, Guild. ; [Cuba I to Brazil ! ; East Indies to the Cape]. 



196. A. harpeodes, Kze. Leaf pinnatisect ; segments numerous, oblong-lanceolate, 

 acuminate, serrate, dimidiate-truncate at the base, lowest shorter : rhachis subterete, mar- 

 gined: veins forked, lowest dichotomous, branches 'terminated within the serratures : petiole 

 purple, margined ; sori linear, little distant from the midrib and more so from the margin. 

 Hook. Spec. t. 178.— A. erectum, Uetten. I A. erectum, y, Hook.— &epaeati 8"'-14"' 

 long, 3"'-5"' broad; sori 2'" long. — HaB. Jamaica I, Macf, Pd., Wils.; [Mexico! to 

 Peru ! ; trop. Africa to the Cape !, Australia]. 



