48. POLYPODIUM, §§§§§ EUPOLVrODICJI. 333 



Ilab. Brazil, nurchdl, 1977, 2020.— Tliis comes near some of tlie forms of P. pcctmaUm, 

 but the scales are different, and the lower \nnuss not reduced. 



170. P. pectinatum, L. ; rhizome stout, fibrillose ; st. rigid, erect, 2-G in. 1., 

 naked or finely villose ; }r. 1-2 ft. 1., 2-0 in. br., cut down to tlie rachis into 

 close blunt liorizontal entire or slightly-toothed pinnce \\-o lin, br., the lower 

 ones much reduced ; texture papyraceo-herbaceous ; colour deep-green ; rachis 

 and both sides naked or finely villose ; veinJets pellucid, once or twice forked ; 

 sori in long rows.— in.: Sj}. i. p. 203. G. F. t. 10. P. loraariEefornie, Kzc. Hk. 

 I. e. 



Hab. Mexico and W. Indies to Peru and Brazil; common. — Similar in habit to the two 

 last, but larger, with the veinlets pellucid in the living-, and conscuuently inconspicuous in 

 the dried phint, usually twice forked, and producing the sorus from the tip of the lowest 

 branch. P. Wageneri, Mett., is a form with anastomosing veins. 



180. P. meridense, Klotzsch ; rhizome creeping, the scales fibrillose, dark- 

 brown ; St. 3-G in. L, wiry, black, scarcely at all villose ; //•. G-9 in. 1,, 3 in. br., 

 lanceolate, cut down to the rachis into close bluntish S'lightly crenate pinnce 

 2 lin. br., which are dilated at the base, the lowest not reduced ; texture 

 coriaceous ; rachis villose ; loth surfaces nearly naked ; veins hidden, once 

 forked ; sori submarginaL — Klotzsch, Linn. 20. p. 380. P. Spixianum, Mart. 



Hab. Columbia, Moritz, ZZo, Lindig ; Brazil, Burchell, 22G8. 



181. P. Ahitaffuas, Hk. ; rhizome clothed with linear bright-ferruginous 

 scales ; st. 6-9 in. 1., firm, erect, ebeneous, finely villose ; fr. 1 ft. or more 1., 

 3-4 in. br., cut down to the rachis into obscurely undulated subacute horizontal 

 pinnce |- in. br., dilated at the base, the lowest not reduced ; texture coriaceous ; 

 rachis and both sides finely villose ; veins immersed, once forked ; sori in two 

 rows midway between the edge and midrib. — Hk, Sp. 4. p. 206. 



Hab. Andes of Ecuador, Spruce, 5281. — Very near the last, from which it differs by its 

 finely-villose stem and surface and medial sori. The two are much more coriaceous than 

 pectinatum, with the veins hidden, and lower pinnse not reduced. 



182. P. l\Io7-itzianum, Link ; rhizome stout, creeping ; scales lanceolate-subu- 

 late, ferruginous ; st. 4-6 in. 1., naked, glossy, erect ; fr. erect, 12-18 in. 1,, 3-4 

 in. br., cut down nearly or quite to the rachis into close bluntish nearly 

 horizontal obscurely undulated innnce j-§ in. br. ; texture papyraceo-herba- 

 ceous ; rachis and both surfaces naked ; veinlets distinct, once forked ; soi'i in 

 two long rows. — Hk. Sp. 4. p. 202. 



Hab. Venezuela, Moritz, 217, Fendler, Steetz. 



183. P. chnoophorum, Kze. ; rhizome stout, creeping ; scales small, few, linear ; 

 St. 4-6 in., firm, erect, grey, villose ; fr. oblong-lanceolate, 9-15 in. 1., 3-4 in. br., 

 cut down to rachis into ligulate, bluntish, entire pinn<k 2-3 lin. br., the lowest 

 shorter, deflexed ; texture membranous ; surfaces and weak rachis villose ; veins 

 twice forked, 10-1.5-jugate, slender, indistinct ; sori medial, superficial, at end of 

 anterior branches. — Hk. ISp. 4. p. 208. P. sublanosum, Hk. iSp. 4. ]). 221. 



Hab. South Brazil, Gardner, 122, etc. 



184. P. Martensii, Mett. ; rhizome stout, wide-creeping, clothed with large 

 bright-ferruginous lanceolate membranous scales; st. 1-2 in 1., firm, erect ; fr, 

 8-12 in. 1., 3-4 in. br., cut down to the rachis into numerous entire horizontal 

 pinnce 2 lin. br., with their own breadth between them ; texture pap^'raceo- 

 herbaceous ; rachis and both sides finely villose ; veins subpinnate ; sori medial, 

 12 or more on each side. — Hk. Sp. 4. p. 207. P. callolepis, Fee. 



