FILICES. 6S1 



190. A. fir mum, Kze. Leaf pinnatisect : segments lanceolate or oblong, bluntish at 

 the tapering point, duplicato-crenate-serrulate, dimidiate-cuneate (rarely auricled-truncate) 

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

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

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

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

 ments ; segments 2"-l" long, 6'" broad ; sori 2 w -l£'"long.— Hab. Jamaica !, Pd. ; [Cuba ! 

 to French islands ; Mexico ! to Brazil !]. 



191- A. laetum, Sw. Leaf pinnatisect : segments trapezoid-oblong, blunt or bluntish 

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

 dimidiate-truncate and upwards angled or slightly auricled at the base, lowest conform: 

 rhachis margined : veins forked and simple, lowest dichotomous, branches terminated near 

 the base of the serratures with a thickened summit: petiole purple ; sori linear, interme- 

 diate between the midrib and the margin. — Schk. Crypt, t. 70. Hook. Spec. t. 173. — 

 A. abscissum, Radd. (ex PI. Spruce.), W. (ex parte). A. Schkuhrianum, Pr. — Segments 

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

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

 Mexico ! to Brazil !]. 



1 92. A. obtusifolium, L. Leaf pinnatisect : segments oblong or oblong-lanceolate, 

 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. Fit. t. 67- Hook. 

 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 !, Sieb. Mart. 363 ; Mexico to New Granada ! and Brazil]. 



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

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

 lowest shorter: rhachis winged: 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"~H" long, 4"'-8'" broad, superior gradually decrescent; sori 2"'-lV" long.— Hab. 

 Jamaica !, Macf., Pd., Bancr. ; S. Vincent !, Guild. ; [Venezuela ! 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. inf.— 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]. 



1 95. A lunulatum, 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 sub terete, narrowly winged: veins forked and simple, lowest 

 dichotomous, branches terminated near the base of the serratures : petiole pale or pale- 

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

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

 PI. Wr. (non Metten.). A. brasiliense, Radd.— Segments 7"'-10"' long, 2"'-4'" broad ; 

 sori 2'" long.— Hab. S. Vincent I, Guild. ; [Cuba ! 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 subterele, 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, Metten. 1 A. erectum, y, Hook.— Segments 8"'-14'" 

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

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



