48. POLYPODIUM, EUPOLYPODIUM. 337 



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

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

 and the pinnae more numerous. 



204. P. sororium, H. B. K. ; rhizome stout, wide-creeping, densely clothed with 

 small pale-brown scales ; st. 6-12 in. 1., firm, erect, naked ; fr. 1-2 ft. 1., 6-9 in. 

 br. ; lower pinnce the largest, sessile, 4-6 in. 1., ^-f 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. 



Hab. Cuba and Mexico southward to Peru. According to Mettenius, Goniophlebium 

 datum, F^e, is a form of this with the veins sometimes united. 



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

 bright ferruginous ; st. 4-8 in. 1., firm, erect, naked ; fr. 12-18 in. 1., 6-9 in. br., 

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

 crenated ; texture subcoriaceous ; both sides naked ; veins close, pinnate ; sori 

 medial, uniserial, slightly immersed. Mett. Pol. p. 63. P. Henchmanni, 

 J. Stn. 



Hab. Mexico. Mettenius describes a closely allied P. harpophyllum, Zenk., from the 

 Neilgherries, with which we are not acquainted. Goniophl. revertens, Fe'e, appears to be 

 a form with the groups of veins sometimes joined. 



206. P. legionarium, Baker ; st. 6 in. or more 1., firm, erect, glossy, naked ; 

 fr. 1^-2 ft. 1., 1 ft. or more br. ; lower pinnae the largest, sessile, 6-8 in." 1., -f 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. Sp. 4. p. 218. (non 

 Reinw.}. 



Hab. Guatemala, Salvin, 



207. P. teneUum, 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 ; 

 veins 2-3 forked ; sori in rows near the edge. Hk. Sp. 4. p. 217. Arthropteris, 

 J. Sm. 



Hab. Australia, New Zealand, and adjacent islands. A very distinct species. 

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



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

 less 1., densely tufted, very slender ; fr. 2-4 in. 1., - in. br. ; pinnce 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 ; 

 veinlets 1 to each lobe ; sori terminal. Hk. Sp. 4. p. 228. Adenophorus, Hk. 8f 

 Gr. Ic. t. 176. 



Hab. Sandwich Isles and Sumatra. A very distinct species, resembling a Eymeno- 

 phyllum in habit and texture. 



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

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

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

 largest and deeply pinnatifid with linear lobes ; texture coriaceous ; under surf ace 

 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 thread-like rhizome. 



2u 



