5i0 roLYPODiuii. 



rather reduced; texture thin, moderately firm ; s?/r/«r ess dull-green, everywhere 

 finely grey-pubescent ; veins 20-.30-ju^'ate, fine, immersed, subpinnate ; sori 

 1-serial, terminal on lowest anterior branch of groups. — Fourn. Fit. Mex. p. 77. 



Hab, Mexico, Bourgeau, 3149. 



198*. P. segregatum. Baker ; rhizome wide-creeping, as thick as a quill ; scales 

 dense, linear, brown, adpressed ; st. 6-8 in., slender, brown-black, nearly naked ; 

 /;*. lanceolate, 6-9 in. J., .3-.3| in. br., simply pinnate ; piimce 15-20-jugate, 

 patent, very distant, linear, bluntish, obscurely repand, li-2 lin. br., narrowed at 

 hase, lowest not reduced ; texture subcoriaceous ; surfaces dull-green, the lower 

 with minute scattered lepidote scales ; teins obscure, immersed, 8-12-jugate, 

 forked ; sori medial, distant, terminal on anterior branchlets. 



Hab. Andes of Quito, Jameson. — Intermediate between gporadolepig and tenuifolium. 



199*. Mettenius and Kuhn, Linnsea, 36. p. 137, separate from pleheium as a 

 species under the name of P. Fraseri, a plant from Ecuador with larger sori and 

 larger fimbriated lepidote scales, which is also distinguished in J. Smith's 

 Herbarium as P. 31atthewsii, MSS. 



199*. P. Bernouillii, Baker ; rhizome 1 lin. thick, firm, wide-creeping, clothed 

 with larire lanceolate pale-brown scales; rf. 1-2 in., grey, slender, clothed with 

 adpressed broad scales ; fr. lanceolate, 6-9 in. 1., 1.5-18 lin. br., simply pinnate ; 

 pimice 40-50-jugate, linear, repand, 1 lin. br., narrowed at base on lower side and 

 gradually to a point, not contiguous, those of the lower half of the frond slightly 

 deflexed ; texture subcoriaceous, not rigid ; lower surface densely clothed with 

 minute fimbriated pale-brown lepidote scales, upper nearly naked ; veins obscure, 

 immersed, simple ; sori 6-8-jugate, filling up the whole space between the edge 

 and midrib. 



Hab. Guatemala, BemouilU, 442. 



203*. P. longepinnulatum,, Fourn. ; /;•. lanceolate, 3 ft. 1., 1 ft. br., simply 

 pinnate ; rachis brown, minutely putiescent ; pinrKB .30-3o-jugate, ligulate, 

 \ in. br., subcrenate, acute, lower distant, narrowed at base ; surfaces bright- 

 green ; C(/5?C5 villose, the rest glabrous ; veins in groups of 3 ; sori round, yellowish. 

 — Fil. Mex. p. 77. 



Hab. Mexico, GaleoUi, 6510. 



204*. P. Guilleminianum, Fourn. ; rhizome as thick as a quill ; scales lan- 

 ceolate, pale-brown ; st. \ ft., slender, with scattered minute hairs ; fr. \\ ft. 1., 

 8-10 in. br., oblong-lanceolate, simply pinnate ; pinnoe 15-20-jugate, ligulate, 

 acute, serrate, upper close, equal at base, lower distant, 1 in. br., cuneate to a 

 narrow adnate base, lowest much reduced ; surfaces pale-green ; costas only 

 Bliijhtly pilose ; veins in groups of 4 ; sori close, uniserial near midrib. — Fil. 

 Mex. p. 77. fig- 2. 



Hab. San Rafael, Mexico, GaUlemin. 



204*. P. ambiguum, Mett. ; rhizome wide-creeping, j in. thick ; scales dense, 

 firm, lanceolate, bi-ight reddish-brown with a long cusp ; st. \ ft., grey, naked ; 

 fr. lanceolate, simpl}' pinnate, 12-15 in. 1., 4-5 in. br. ; pnnnoe 30-jugate, patent, 

 linear, narrowed to a point, § in. br., equal at base, entire, lower nearly free, 

 shortened, deflexed ; ^"ac/iizs grey, downy ; ie^^wre membranous ; surfaces bright- 

 green, finely downy ; veins pellucid, 3-furcate ; sori 20-30-jugate, close, sub- 

 costular. — Kuhn, Linn. 30. p. 134. 



Hab. Venezuela, Pcndler, 251. — Bet-ween soroiium and suipetiolaium. 



