FILICES. 683 



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

 the broad, or nan-ow, acuminate, or blunt, or truncate segments, the primary ones l"-^3" 

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

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

 and the Cape I]. 



** Leaf Z-jnnnaiipartite s indusium ciliate. 



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

 hairy beneath or ciHate : segments OTate or deltoid, unequally serrate or pinnatifid : veins 

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

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

 t, 66. J : a form with blunt segments. — A. authriscifolium, Jacg. : the form with piu- 

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

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

 lands !, Sieb. Mart. 361 ; Mexico I to Venezuela 1 ; Abyssinia I].. 



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



tisect (pcenopteris). 



»-^ 304. A. dentatum, L. Leaf pinnatisect : segments subdistant, cuneate-elliptical (or 

 roundish), blunt, dentate above, lowest smaller : rhachis green-margined : veins 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. Fit. t. 

 101, dei:ir. inf. Book. Grev. Ic. t. 72. — A. pygmffium, L. see. Siii. — 3"-8" high ; segments 

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

 Mexico !]. 



y" 20.5. A.tritihoTaiaaes, Huds. Leaf pinnate: leaflets oval, erenate,c\mta.t& or ivxm- 

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

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

 oval), intermediate between the margin and the flexuose midrib. — Schk. 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 !, Macf., Pd. ; [northern temperate and 

 tropical zones of the globe]. 



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

 diate-truncate at the base, pinnated 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 obloog-half-oval-oblong, extending 

 from near the midrib to the base of the serratures. — Plum. Fit, 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- 

 pagos ! ; trop. Africa and Asia].. 



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

 serrate, dimidiate-truncate and upwards am-icled 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, 

 t. 177. — I'-l^' high ; most segments 1" long, 3"' broad.— Hab. Jamaica !, Al. ; S. Vin- 

 cent !, Guild. ; [Portorico ! to Guadeloupe ! ; Venezuela I to Ecuador ! and Brazil !]. 



^ 208. A. fragrans, Sw. Leaf%-Z-pinnatisect: primary *e^««i!* subdistant, lowest con- 

 form, ultimate lanceolate, indso-serrate above ; rhachis flattish : veins simple, lowest forked : - 

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

 subparallel to the iolm^-e—Hook. Grev. Ic. t. 92.— A. foeniculaceum, Kth. A. delicatulum, 

 Pr.—^'-^'i high; primary segments 6"'-15"' long. — Hab. Jamaica), Macf, Pd., Al., 

 common ; Dominica !, Imr'..; [Cuba I to French islands I ; Mexico ! to Ecuador !]. 



209. A. rhizophornm, L. Leaf 2-pinnatisect or pinnatisect, proliferous at the 

 summit ; primary segments oblong-lanceolate, undivided an&s.exTiAe-'Z-pinnatipartite, lowest 

 conform, secondary and tertiary ones cuneate-elliptical or obovate: rhachs devoid of a 

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



sori oblong; intermediate between the midrib and margm : mdusium narrow. 



