DICKSONIA. 77 



])innatiri(l rolundato-sinuatc Iruucalc and crenatc at the apex, 

 costcc liairy benoalh, segments oblong truncate falcate, par- 

 tial racliis pubescent." K<mlf. Kn. Fil. p. 227. 



Ilal). Brazil, {Spmujel). " Sori rallicr larp;e, obloii};, transverse, in the 

 sinnscs of t)ic sesincnts. Inclusia ovate, transversely dehiscing." Whether 

 the aiipcarance of transverse opening of the involucres be oceasicnied by 

 pressure in <lrying, or not, I am doubtful. 1 suspect the species is nearly 

 allied to D. cicutaria. 



32. D. (fi.sserfn, S\v. ; fronds spreading trijiinnate, idtimate 

 ])inna; or ])in]inles lanceolate cuneate at the base and decur- 

 rent upon a slightly winged rachis deeidy ])innatifid with long 

 narrow segments the hnver ones of which arc often inciso- 

 ])innatirid, sori rather small solitary in the sinuses of the seg- 

 ments cup-sha])ed, rachis and costa slightly hairy. — Sw. Syn. 

 Fil. p. 130. Willd. Sp. PL p. 486. Svhkuhr, Fil. t. 130, h. 

 Alarfens et Galeoiti, Fil. Mex. p. 77. Dicks, expansa, Kanlf. 

 in Sieb. Syn. Fil. n. 110. 



Hab. Jamaica, Swartz, Bancroft, Wiles. Vera Cruz, Mexico, Galentti. 

 — What I take for this idant, and from whence I have drawn up my specific 

 character, might, I think, without violence to nature, be considered a vari- 

 ety of D. cicutaria, with narrower pinnules and finer segments. Schkuhr's 

 figure is sufliciently accurate. 



33. D.npiifolia, Sw.; fronds tripinnate, pinnides rhombeo- 

 lanceolate deeply inciso-pinnatifid subj^etiolate and decurrent 

 on a slightly winged rachis, the segments narrow-linear acute 

 pointing upwards, sori rather small on short teeth in the si- 

 nuses of the segments, rachis and costa quite glabrous, (Tab. 

 XXVI. C.)— ^m;. Syn. Fil. p. 137. JVilltL Sj). PI. p. 487. D. 

 a])iifolia, ^. dissecta, Desv. et Kze. PL Crypt. Poepp. p. 88. 

 D. angustidcns, Pr. 



Hab. Jamaica, Suartz. Maynas, Peru, Poeppig. — My character of this 

 is taken from Poeppig's specimen, the same as Kunze's plant, and which 

 seems to me to be the same with D. apiifolia, Sw. ; a name it appears 

 well to deserve. Swartz, however, was unacquainted with the fructifi- 

 cation, and of course the genus was doubtful to him. It is remarkable for 

 the inciso-pinnatifid character of the pinnules, their narrow segments and 

 their tai>ering almost into a footstalk, which however is decurrent and forms 

 a very narrow wing upon the rachis. 



34. 1). Jlaccidd, Sw.; "fronds triplicato-pinnate, primary 

 and secondary pinna; acuminate, ])innules (nato-oblong acute 

 jiinnatifid, segments oblong-cuneate the U]i])er margin une- 

 qually and obtusely dentate, the up})cr fructiferous ones bi- 

 dentate, stipes and rachis downy." Willd. — Sw. Syn. Fil. 

 p. 137 and 357. IMlld. Sp. PL v. p. 489. Schkh. FiL t. 129. 

 Dennstiidtia (laccida, licrnli. in Schrad.Journ. 1801, t. \,f. 

 3. Trichomanes flaccidum, Forsf. Vrodr. n. 472. 



