48. POLTPODIUM, §§§§§ EUP0LTP0DIU3I. 337 



Hab. Mexico, Guatemala, and Cnba. — ^The Mexican P. liserraium, M. & G., is pi-o- 

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

 and the pinnse more numerous, and sori more distant. 



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

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

 br. ; lower pinnoe the largest, sessile, 4-6 in. 1., J-J in. br., the apex acuminate, 

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

 and both sides naked ; v^ns 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 Pern. — According to Mettenias, GoniophJMum 

 elatum, F4e, is a form of this with the reins sometimes united. 



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

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

 lower pznn(E 1 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, 

 iT. Sm. 



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

 Neilgherries, with which we are not acquainted. Goniophl. revertenSj F^e, appears to be 

 a form with the groups of veins sometimes joined. 



2Q6. P. legionariuin. Baker ; St. 6 in. or more ]., firm, erect, glossy, naked ; 

 fr. lJ-2 ft. ]., 1 ft. or more br. ; lower pirmce the largest, sessile, 6-8 in. 1., ^f in. 

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

 viUose ; 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. (mn 

 Reinw.^. 



Hab. Guatemala, Sdhin. 



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., 5 in. br., .narrowed to both ends, entii'e 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 New Caledonia — A very distinct species. 

 ***** FroTids bipinnaiijid or bipznnate. Sp. 208-219. 



208. P. hj/menophylloides, Kaulf. ; rhizome fibrous, very slender ; **. 1 fil. or 

 less 1., densely tufted, very slender ; Jr. 2-4 in. 1., ^f in. br. ; pinnce close, 

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

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

 veinlets 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 Hymenophyllum in habit 

 and textur.i. 



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

 clothed witJi fine brown tomentum ; St. distant, slender, ^1 in. I., nearly naked ; 



Jr. 1-1^ in. 1., ^ in. br., with a few distinct pinnae on each side, the lowest the 

 largest and deeply pinnatifid with linear lobes ; texture coriaceous ; under surface 

 with minute scattered scales ; sari 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 



