FILICES. 663 



the apex of the inferior margin. — Hook. Spec. t. 62. A. — L. rufescens, Kz. I — Primary seg- 

 ments 8"-li' long, 8"'-10"' broad.— Hab. Jamaica !, Pd., in the Bluefield Mountains ; 

 Trinidad!, Pd. ; [French islands ; Venezuela !, Guiana!]. 



81. L. stricta, Dry. Leaf piunatisect, 2-piunatisect below, herbaceous, rigid-erect : 

 segments dimidiate-half-round, subrectangular at the base : basilar margin straight, inferior 

 straightish or backward curved, superior half-circular, fertile : petiole cylindrical ; sori con- 

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

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

 Jamaica ! (Sw.), in high mountains ; Trinidad !, Lockh., Pd. ; [Mexico to Brazil !]. 



14. ADIANTUM, L. 



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

 veinlets or laterally confluent beyond them : no proper indusium. — Leaf-segments often 

 cuneate at the base and oblique : veins usually dichotomous, rarely anastomosing. 



* Leaf pinnatisect or 2 (-4) -pinnatisect : segments subsessile or shortly petiolulate. 



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

 lateral subsessile, obliquely ovate- deltoid, sterile unequally serrate : petiole glabrous, ebene- 

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

 the segments. — Br. Jam. t. 38. /. 1 : a sterile leaf-segment. Hook. Orev. Ic. 1. 132. — 1' 

 high ; segments variable, sterile about 2"-3" long, l"-li" broad, fertile somewhat narrower. 

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

 Brazil !]. 



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

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

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

 the rounded or subcordate lose.— Hook. Spec. t. 72. .4.— Nearly allied to the preceding : 

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

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

 Wils., in dry plains, near Bath. 



84. A. Kaulfussii, Kze. Leaf pinnatisect : segments distantly i-7-jugal, chartaceous, 

 glaucous beneath, shortly petiolulate, obliquely deltoid-lanceolate (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!, 

 Guild. ; [Cuba ! to French islands ! ; 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-pinnatisect leaves, 

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

 comprising two Swartzian species. ■ : . 



o. Sori much interrupted.— Plum. Til. t. 52.— A. macrodon, Kaulf. (ap. Kze. I) : a form 

 with 7-9-jugal, bluntish segments. 



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

 minate.— SI. t. 55./. 2. Hook. Spec. t. 79- C— Hab. Jamaica !, Masson (0) ; Trinidad !, 

 Sch. {a, 0) ; [Cuba! to Brazil!].' 



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, subsolila } -y."-Mart. Crypt. Bras. t. 26. / 4.- H '-*" high ; lateral seg- 

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



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

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

 shortly petiolulate : petiole short, glabrous, or with a line of spreading hairs : rhachis often 



