FILICES. 683 



name (1788), but regarding only a special form with truncate segments.— Variable chiefly in 

 the broad, or narrow, acuminate, or blunt, or truncate segments, the primary ones l"-3" 

 long, secondary spreading, terminal often narrowly acuminate.— Hab. Jamaica !, Mac/., Pd., 

 m high mountains, on rocks, at 5000' alt. ; S. Vincent !, [all tropical countries to Madeira 

 and the Cape Ij. 



** Leaf S-pinnatipartite ; indusium ciliate. 



203. A, pumilum, Sw. Leaf Z-partite (-pinnatipartite), deltoid, herbaceous, often 

 hairy beneath or ciliate : segments ovate or deltoid, unequally serrate or pinuatiud : veins 

 dichotomous or forked, terminated near the margin : petiole pale, brown below ; sori linear, 

 distant from the midrib, and more so from the margin : indusium ciliate. — Plum. Ml. 

 t. 66. A : a form* with blunt segments. — A. anthriscifolium, Jacq. : the form with piu- 

 natipartite leaves.— 3"-6"(-10") high; inferior segments 8"'-16"' long, 6"'-10"' broad, 

 usually pointed.— Hab. Jamaica !, Macf, Pd. ; S. Vincent !, Guild. ; [Cuba ! to French is- 

 lands !, Sieb. Mart. 361 ; Mexico ! to Venezuela ! ; Abyssinia !]. 



§ 3. Veins simple, pinnate, lowest forked. — Leaf herbaceous, pinnatisect-pinnate-3-pinna- 



tisect ifianopteris). 



204. A. dentatum, L. Leaf pinnatisect : segments subdistant, cuneate-elliptical (or 

 roundish), blunt, dentate above, lowest smaller : rhachis green-margiued : veius few, simple, 

 slender, terminated at the base of the teeth, lowest forked : petiole pale or brown at the 

 base; sori oblong, intermediate between the margin and the flexuose midrib. — Plum. Fil. t. 

 101, dexir. inf. Hook. Grev. Ic. t. 72. — A. pygmseum, L. sec. Sw.—3"~&" high ; segments 

 3 '-6'" long, 2"'-4'" broad. — Hab. Jamaica !, all coll., on walls ; [Cuba ! to French islands ! ; 

 Mexico !]. 



205. A. Trichomanes, Huds. Leaf pinnate: leaflets oval, crenate, cuneate or trun- 

 cate at the oblique or upward produced base, lowest subdistant, smaller : rhachis scarious- 

 oiargined : veins few, simple, lower (or most) forked : petiole black; sori oblong (or half- 

 oval), intermediate between the margin and the flexuose midrib.— Sc/ik. Crypt, t. 74. — By 

 the veins sometimes most forked (A. anceps, Sol.) it passes into the preceding series, but in 

 habit stands next to A. dentatum. — Hab. Jamaica \, Marfl, Pd. ; [northern temperate and 

 tropical zones of the globe]. 



206. A. formosum, W. Leaf pinnate : leaflets oblong-lanceolate, blnntish, dimi- 

 diate-truncate at the base, pinnatifid and obtusely serrate at the upper margin and round 

 the apex, lowest distant, small; rhachis scarious-margined : veins simple, lower forked, 

 terminated within the serratures .- petiole black ; sori oblong-half-oval-oblong, extending 

 from near the midrib to the base of the serratures. — Plum. Fil. t. 66. B. — A. nanum, W. 

 — 6"-l 2" long, shortly petioled ; segments usually 6"'-8'" long, 2"'-3'" broad.— Hab. Ja- 

 maica !, Wils. ; [Cuba ! to French islands !, Sieb. Mart. 246 ; Mexico ! to Brazil ! ; Gala- 

 I»gos ! ; trop. Africa and Asia]. 



207. A. pteropus, Kaulf. Leaf pinnatisect: segments spreading, oblong, pointed, 

 serrate, dimidiate-truncate and upwards auricled at the base, lowest gradually smaller : 

 rhachis margined : veins simple, lowest forked : petiole margined, pale or pale-brown be- 

 neath ; sori oblong, distant from the midrib, and more so from the margin.— Hook. Spec. 

 *■ 177.— l'-l$> high; most segments 1" long, 3'" broad.— Hab. Jamaica!, At,; S. Vin- 

 cent !, Guild. ; [Portorico ! to Guadeloupe ! ; Venezuela 1 to Ecuador 1 and Brazil IJ. 



208. A. fragraus, Sio. Leaf2-3-pinnatisect: primary segments subdistant, lowest con- 

 form, ultimate lanceolate, inciso-serrate above : rhachis fiattish : veins simple, lowest forked : 



petiole pale or brown; sori oblong, extending from the midrib to near the base of the lobes, 

 sabparallel to the former.— Hook. Grev. Ic. t. 92.— A. feeuiculaceutn, Kth. A. delicatulum, 

 Pr.~- 3"-8" high; primary segments 6"'-15"' lon^.— Hab. Jamaica!, Macf, Pd., Al., 

 common ; Dominica !, Imr. ; [Cuba ! to Freuch islands ! ; Mexico ! to Ecuador !]. 



209. A. rhizophorum, L. Leaf 2-pinnatisect or pinnatisect, proliferous st the 

 summit : primary segments oblong-lanceolate, undivided m d semte-2-pinnatipartite, lowest 

 conform, secondary and tertiary ones cuneate-elliptical or obovate : rhachis devout of a 

 membranaceous margin : veins simple, lowest forked : petiole shining-brown or purple ; 

 sori oblong, intermediate between the midrib and margin : ittdusinm narrow. 



