48. POLYPODIUM, §§§§§ EUPOLYPODIUM. 337 



Hab. Mexico, Guatemala, and Cuba.— The Mexican P. hiserraiian, M. & G., is pro- 

 bably the same, but in our specimens from Mettenius the fronds are much more elongated, 

 and the pinnje more numerous, and sori more distant. 



204. P. sororium, II. B. K. ; rhizome stout, wide-creeping, densely clotlied with 

 small pale-brown scales; st. G-12 in. 1., firm, erect, naked ; fr. 1-2 ft. 1., G_-9 in. 

 br. ; lower pinnoe the largest, sessile, 4-(3 in. 1., |-| in. br,, the apex acuminate, 

 the edge entire or obscurely undulated ; texture papyraceo-herbaceous ; rachis 

 and both sides naked ; veins fine, very distinct, pinnated ; sori in distinct rows 

 nearer the midrib than the edge. — Hk. Sp. 4. p. 219. 



Ilab. Cuba and Mexico southward to Peru.— -According to Mettenius, GuniopJdebium 

 elalum, Ft5e, is a form of this with the veins sometimes united. 



205. 'P.fratermim, C. & S. ; rhizome wide-creeping, the scales ovate-acuminate, 

 bright ferruginous ; st. 4-8 in. 1., firm, erect, naked ; fr, 12-18 in. 1., G-9 in. br., 

 lower pinnce 1 in. apart, 4-.5 in. 1., narrowed at both ends, the edge obscurely 

 crenated ; texture subcoriaceous ; both sides naked ; vei^is close, pinnate ; sori 

 medial, uniserial, slightly immersed. — Mett. Pol. p. G3. P. Henchmanni, 

 J. Sm. 



Hab. Mexico.— Mettenius describes a closely allied P. harpophijllum,, Zeuk., from the 

 Neilgherries, with which we are not acquainted. Goniophl. revertens, ¥6e, appears to be 

 a form with the groups of veins sometimes joined. 



20G. P. legionarium. Baker; s?. G in. or more I., firm, erect, glossy, naked; 

 //'. l|-2 ft. 1., 1 ft. or more br. ; lower 2nnnce the largest, sessile, G-8 in. 1., |-| in. 

 br., 'broadly crenate, the base rounded ; texture herbaceous ; both sides finely 

 villose ; veinlets in pinnated groups of 2-3 on a side ; sori large, in long distinct 

 rows nearer the midrib than the edge. — P. macrodon, Hk. tSp. 4. p. 218. {non 

 Reinio.). 



Hab. Guatemala, Salvin. 



207. P. tenellum, Forst. ; rhizome wide-climbing, woody, scaly when young ; 

 St. 2-3 in. 1., firm, nearly naked, jointed near the base ; fr. pendent, 1-2 ft. or 

 more 1., 2-4 in. br. ; pinnce 2-3 in. 1., | in. br., -narrowed to both ends, entire or 

 obscurely crenated ; texture papyraceo-herbaceous ; rachis and both sides naked ; 

 m7i5 2-3 forked ; sori in rows near the .edge. — Hk. Sp. ^. p. 211. Arthropteris, 

 J. Sm. 



Hab. Australia, New Zealand, and ^iew Caledonia. — A very distinct species. 



***** Fronds bipinnatifid or hipmnate. Sp. 208-219. 



208. P. hymenophylloides, Kaulf. ; rhizome fibrous, very slender ; st. 1 fil. or 

 less 1., densely tufted, very slender ; fr. 2-4 hi. 1., J-§ in. br. ; pinncB close, 

 usually dimidiate, cut down to a broadly-winged rachis into a few small oblong 

 lobes ; texture pellucido-herbaceous ; rachis and both sides finely glandular ; 

 veinlcts 1 to each lobe ; sori terminal. — Hk. Sp. 4. p. 228. Adenophorus, Hk. S^ 

 Gr. Ic. t. 176. 



Hab. Sandwich Isles. — A very distinct species, resembling a llymenophyllum in habit 

 and textwrj. 



209. P. fallax, Schlecht ; rhizome slender, wide-creeping, much-branched, 

 clothed with fine brown tomentum ; st. distant, slender, \-\ in. 1., nearly naked ; 

 fr. 1-1^ in. 1., \ in. br., with a few distinct pinnce on each side, the lowest the 



largest"and deeply pinnatifid with linear lobes ; texture coriaceous ; tinder surface 

 with minute scattered scales ; sori large, prominent, often 1 only to a pinna. — 

 Hk.Sp.4:.p. 215. 



Hab. Mexico. — Fronds often more than an inch apart on a long threadlike rhizome. 



2 u 



