LINPSKA, 217 



rrequently curved or lalcate, i)inii;t' S — 7 or 13 linear-strap- 

 shaped very much elongated especially the teruiinal one acu- 

 minated falcate, pinnules apj^roximate horizontal semi-ovate 

 very obtuse membranaceous entire gradually smaller towards 

 the apex, superior base truncate, upper margin semicircular, 

 lower straight or slightly arched, sorus narrow a little within 

 the margin continuous but frequently abbreviated not occu- 

 pying the whole of the upper margin. (Tab. IjXH. A.) Dry. 

 in Linn. Trans, iii. p. 42. Sic. Si/n. Fil. p. 110. JVillcl. 

 Sp. PL V. />. J34. L. riifescens, Kze. in lilt. [Jide J. Sm.) 

 Adiantum Guianense, Aubl. Giiian. p. 963, /. 365. 



$. major ; larger, I4, 2, or 3 feet, pinnules less approxi- 

 mate. L. Moritziana, Kl. in Lintuea, 1844, y?. 548. 



Hub. Guiana, comnion, Aublcl, Schomhurgk, n. 346 ; Hoslmatm, n. 9(5. — 

 iS. French Guiana, IVequent, Z-e;>/t('i/r {Herb. Rotherr/). Bluelield Moun- 

 tains, Jamaica, Purdie. Venezuela, Aldridi/c. — This fern is much more 

 unifonn in its liahit than tlie preceding;:. What I have called our /3. is 

 larger and with more hix or distant pinnules than a. which is well repre- 

 sented in Aul)lct, and (a pinna) in our Tah. <>2, A. Still there seem to be 

 intenncdiate states between this and L. stiicla. 



42. L. rigida, J. Sm. ; caudex long creejiing scaly, rough 

 with short distant inconspicuous jirickles, frond bipinnate 

 rigid (rufiscent) subfalcate, pinntc 7-9 remote linear alternate 

 falcate terminal one very long, pinnuks approximate coria- 

 ceous flabellate orrhombeo- or oblong- flabellatc, upper base 

 truncate, lower margin straight or slightly arched, upper one 

 semicircular lubed and crenatcd margined, veins very pro- 

 minent on both sides, sori abbreviated quite marginal on one 

 or two terminal lobes, involucre coriaceous. (Tab. LXIII. A.) 

 — J. Sm. in Hook. Jonrn. of Bat. iii./?. 415, {name only). 



Hab. Malacca, Cumirtfj. n. 397. Mount Ophir, Malacca, Griffith, Mr. 

 Thou. Lolb. — A most distinct and veiy handsome species. Habit of some 

 of the commoner fonns of /.. strieta of the New World, but always 

 more or less falcate in the fronds and in the pinn?e, far more coriaceous 

 and rigid, with singularly prominent pale veins, of which those bearing the 

 sori seem to be connected by a transverse one as far as the sorus extends. 

 Involucres opening quite at the margin (never bending back or down) and 

 singularly rigid and coriaceous. 



43. L. Lfissonii, Bory ; caudex filiform creeping scaly, 

 stipes tetragonal filiform, frond (small) broad lanceolate mem- 

 branaceous pinnate and especially below bipinnate, pinnae 

 oblong-lanceolate lobed (or pinnated) cuneate at the base, 

 ultimate ones and pinnules cuneate dccurrent, their apices 

 toothed, costa central in the undivided pinnae, with the sori 



u 



