FILICES. 663 



the apex of the inferior margin.— ZTooA. Sjpec. t. 62. A.—L. rufescens, Kz. /—Primary seg- 

 ments 8"-li' long, 8"'-10'" broad.— Hab. Jamaica I, Pd., in the BhiefieH Mountains j 

 Trinidad I, P<^. ; [French islands ; Venezuela!, Guiana!]. 



81. Ii, stricta, Siy. Leaf piunatisect, 3-pianatisect below, herbaceous, rigid-erect : ^ 

 segmenis dimidiate-half-round, subrectangular at the base : basilar margin straight, inferior >( 

 straightish or backward curved, superior half-circular, fertile : 'petiole cyUndHcal ; aori con- 

 tinuous, not quite extending to the apex of the inferior margin. — Schk. Gryvt. t. 114. med. 

 Hook. lo. t. 98 : the simply pinnatisect form.— "Usually l'-2' high, 4"'-8"' broad.— Hab. 

 Jamaica ! {Sw^, in high moontains ; Trinidad !, Lockh., Pd. ; [Mexico to Brazil !]. 



14. ADIANTUM, I. 



Sori inserted into the revolute, specially transformed part of the leaf-margin or excurrent 

 veinleta or laterally confluent beyond them ; no proper indusium. — Leaf-segments often 

 cuneate at the base and ohlique : veins usually dickotomous, rarely anastomosing. 



* Leaf pinnatisect or Z{-4:)-pinnatisect : segments subsessile or shortly petiolulate. 



83. A. macrophyllum, Sw. Leaf pinnatisect : segments 3-6-jugal, chartaceous, 

 lateral subsessile, obliquely ovate-deltoid, st-erile unequally serrate : petiole glabrous, ebene- ' 

 ous ; sori continuous or istantly interrupted, linear, not produced to the truncate base of ' 

 the segments. — Br. Jam. t. 38. _/. 1 ; a sterile leaf-segment. Hook. Qrev. Ic. t. 132. — 1' 

 high ; segments variable, sterile about 2"-3" long, 1"-1V' broad, fertile somewhat narrower. 

 Hab. Jamaica!, all coll.; S.Vincent; Trinidad; [Cuba! to French islands!; Mexicolto 

 BrazU!]. 



83. A. ^Vilsoni, Hook. ! Leaf pinnatisect : segments 3-1-jugal, leathery, lateral 

 shortly petiolulate, obliquely ovate or ovate-oblong, acaminate with a bluntish point, sterile 

 serrate : petiole glabrous, ebeneous ; sori continuous nearly along the whole margin to near 

 the rounded or subcordate base. — Hook. Spec. t. 72. A. — Nearly allied to the preceding : 

 anastomosing veins are infrequent, and occur also in A. macrophyllum, but the midrib is 

 more developed below ; I'-li' high ; segments 3"-4" long, l"-2" broad. — Hab. Jamaica !, 



Wils., in dry plains, near Bath. 



84. A. Kaulfussii, Kze. Leaf pinnatisect : segments distantly ^l-jugal, chartaceous, , 

 glaucous beneath, shortly petiolulate, obliquely rfWto'rf-&«<!eo^«<e (or ovate), sterile serrate: 

 petiole and rhachis rusty-downy ; sori lining nearly the whole margin, linear, contiguously ' 

 interrupted. — Hook. Qrev. Ic. t. 190. — A. obliquum, Kaulf, Sieb. Mart. 371. — 1' high ; 

 segments about 2" long, 6"'-8"'(-12"') broad.— Hab. Jamaica!, Wright; S, Vincent!, 

 Ouild. ; [Cuba ! to French islands I ; Mexico to Brazil !]. 



85. A. obliquum, W. Leaf pinnatisect (or 2-pinnatisect at the base) : segments 7-18- 

 jugal, chartaceous, green on both sides, obliquely deltoid-lanceolate or dimidiate, inferior 



shortly petiolulate, sterile serrate : petiole and rhachis rusty-downy ; sori lining nearly the 

 whole margin, except the base, contiguously interrupted (or continuous). — Hook. Spec. t. 

 ■79. A. — A. denticulatum, Sw.: Swartz's observation, that there occur 2-pimiatisect leaves, 

 is confirmed by Feudler's Venezuela specimen (no. 469), but I prefer Willdenow's name, as 

 comprising two Swartzian sp'eoies. 



o. Sori much interrupted. — Plum. Ml. t. 52. — A. macrodon, Kaulf. (op, Kze. .') : a form 

 with 7-9-jugal, bluntish segments. 



j3. lucidum. Hook. ! (Sw. ex parte). Sori continuous ; leaf-segments usually more acu- 

 minate. — SI. t. 55. f. 3. Hook. Spec. t. 79. C— Hab. Jamaica I, Masson (0) ; Trinidad <., 

 Sch. (o, ;8) ; [Cuba! to Brazfl!]. 



86. A. pumilum, Sw. " Low ; leaf pinnatisect : segments lateral roundish or ellip- 

 tical, blunt, minutely serrulate, terminal larger, trapezoid : petiole pubescent or glabrate ; 

 sori reniform, subsolitary."—Mart. Crypt. Bras. t. 26. /. 4.—" 2i '-5" high ; lateral seg- 

 ments about 6'" long." — Hab. Jamaica ! {Sw.), rare, on shady rocks and old trees. 



87. A. deltoideum, Sui. Leaf pinnatisect or once 2-pinnatisect at the base : segments 

 6-8-jugal, membranaceous, subequal-sided, deltoid or deltoid-roundish, blunt, subentire, 

 shortly pe'tiolulate : petiole short, glabrous, or with a line of spreading hairs : rhachis often 



