2G0 POLYI'ODIUM, § PIIEGOPTERIS. 



201. P. (Phegopteris) subincisum, WiWd. ; " caudex arbo- 

 reous, fronds subtripinnato-partite, stipes and rachises and 

 the veins above fusco-strigillose with subulate scales, pinnae 

 and pinnules linear-oblong acuminate, segments linear-oblong 

 obtuse crenato-pinnatifid crenate sinuato-dentate or suben- 

 tire, sori (upon a vein or upon a veinlet of a forked vein) 

 on the entire segment (of the inferior portion of the frond) 

 10-12, one to each of the teeth or lobule of the pinnule." 

 Mart.—Willd. Sp. PL v. p. 202. Mari. Crypt. Bras. p. 8 9. 

 /. 64. Phegopteris, Fee, Gen. Fil. p. 24.3. Metten. Phegopt. 

 p. 30. Alsophila Martinicensis, Sieb. Syn. Fil. n. 162. Hook. 

 Sp. Fil. i. p. 48. 



Hab. Martinique, Sieher. Brazil, Martins. — This had been placed by Sprengel, 

 Sieber, and others, in Alsophila, among Cyatheaceous plants ; but it is probably 

 more correctly referred to Polypodium. I am obliged to have recourse to what I 

 am disposed to consider a good authority for this species, especially as it is ac- 

 companied by a fine figure; but I confess myself unable to distinguish this from 

 my specimens of the preceding one. 



obtuse, inferior attenuated at the base adnate pinnatifid, superior ones con- 

 fluent obtuse crenate, lobes approximate oblong subfalcate or at the apex ob- 

 liquely obtuse, branches of the pinnated veins undivided each soriferous, sori of 

 moderate size, involucre reniform with the margin i.<flexed repando-ciliate rigidly 

 membranaceous persistent at length reddish." Metten. — Kze. in Linncea, \x. p. 95. 

 Metten.Aspid.p.12,. Eat. in Fil. Wriffht.et Fendt. p. 209. Aspid. nemophilum, 

 Kze. I. c. {fide Metten.). Lastrea, Moore. 



Hab. Peru, '^ Pceppig. Caraccus, Moritz, Linden." Yeneznela, Fendler,n.204. 



I discover another Lastreoid Fern among my Phegopteris-section, referred thither 

 by the acute Mr. Spruce as well as myself, which I may here introduce : — 



125 ter. Nephrodium (Lastrea) Palatanganum, Hook. ; stipes thick as a duck's 

 quill a span or more long rufous-brown at the base densely clothed with very slender 

 silky ferruginous hairlike scales \-\h inch long, upwards together with the rather 

 stout rachises and costse clothed with rather small but copious erect or appressed 

 linear-lanceolate dark scales pale-brown at the margin often mixed with broader 

 and ciliated ones, frond firm-niembranaceous tripinnate probably ample, our solitary 

 specimen has two pairs of distantly placed pinnae (the pairs 6 inches apart nearly 

 opposite) a foot long 6 inches broad ovate-acuminate petioled slightly falcate 

 with an upward curvature, on both sides beset with minute glittering pellucid 

 glands, obscurely hairy on the veins, secondary pinnules subpetiolulate nume- 

 rous very closely placed (mostly overlapping each other with their margins) 2-3 

 inches long 1 inch wide in the broadest part from a broad subtruncated base 

 oblong obtusely acuminate, pinnules also all close-placed l-\ an inch long 2-3 

 lines wide sessile oblong obtuse straight or slightly falcate, pinnatifid nearly half- 

 way down witli ovate obtuse always entire lobes, those of the apex alone entire 

 and coadunate, veins usually forked in each lobe the upper branch bearing a pale 

 coloured sorus of lax capsules near the bas^, involucres very thin and membrana- 

 ceous cordate glanduloso-ciliate soon deciduous. 



Hab. Palatangana, Andes of Ecuador, Spruce, n. 5256. — This appears to me 

 to be a new and very distinct species of tlie Z,ff.s/rea-group of Nephrodium, but 

 vcrv (lifH'-'ult of definition, as are so many of the decompound Ferns. 



