48. POLYPODIUM, CAMPYLONEURON. 349 



very gradually ; the edge entire or slightly sinuated ; texture rigid, very 

 coriaceous ; both sides naked, often with cretaceous dots above ; main veins 

 straight, very prominent, distinct to the edge ; areolce in rows of 6-12 between 

 the midrib and edge, with usually 2 sori in each. Hk. Sp. 5. p. 38. 



Hab. Florida to S. Brazil, common. 0. latum, Moore, is a large broad-leaved variety^ 

 with often 3 sori in the areolse. P. nitidissimum, Mett., in the specimens we have 

 seen has a very glossy frond, st. 5-6 in. 1., and lanceolate-acuminate scales. 



ft Fronds pinnate. Sp. 274-5. 



274. P. (Camp.) decurrens, Raddi ; rhizome wiry, rather slender, the scales 

 deciduous; st. 6-12 in. 1., firm, naked; fr. usually with several erecto-patent 

 pinna? on each side, which are 8-12 in. 1., 1^-2 in. br., the point acuminate, the 

 base narrowed, the edge nearly entire ; texture subcoriaceous ; colour dark- 

 green ; both sides glossy ; areolce about 6 between the midrib and edge, with 2-3 

 sori in each. Hk. tip. 5. p. 42. 



Hab. Brazil and Peru. 



275. P. (Camp.) Fendleri, Eaton ; rhizome stout, densely clothed with large 

 lanceolate greyish-brown scales; st. If -2 ft. 1., strong, naked, glossy ; fr. with 

 several erecto-patent pinna? on each side, which are 12-18 in. 1., 2-4 in. br., the 

 point cuspidate, the base narrowed, the edge entire ; texture coriaceous ; colour 

 pale-green ; both sides glossy ; veins raised, very distinct ; the areolce in rows of 

 8-12 between midrib and edge, with 3-4 sori in each. C. magnificum, Moore. 



Hab. Venezuela, Fendler, 231, 410. New Granada, Lindig, 307, Triana. 



** Under surface matted with woolly or cottony tomentum. Niphobolus, Auct. 

 TAB. 48. fig. k. 1. Sp. 276-296. 



f Tomentum thin, adpressed. Sp. 276-284. 



276. P. (Niph.) confluens, R. Br. ; rhizome filiform, wide-creeping, clothed 

 with squarrose fibrillose ferruginous scales ; st. J-J in. 1. ; fr. dimorphous, the 

 sterile ones orbicular or oblong, the fertile ones longer and narrower, about 

 1 in. 1., ^ in. br., the edge quite entire ; texture coriaceous ; upper surface naked, 

 lower with dense glossy subferruginous tomentum ; veins quite hidden ; sori im- 

 mersed but prominent, sometimes covering the whole surface. Hk. Sp. 5. p. 46. 



Hab. Temperate E. Australia. Probably a variety of P. serpens. 



277. P. (Niph.) serpens, Forst. (non Sw.) ; rhizome wide-creeping, firm, 

 clothed with linear-acuminate ferruginous scales ; st. f-3 in. 1., firm, erect ; fr. 

 dimorphous, the barren ones round or elliptical, the fertile ones longer and 

 narrower, 4-6 in. 1., ^-f in. br. ; texture coriaceous ; upper surface scattered, 

 lower densely coated with close whitish or subferruginous tomentum ; veins 

 quite hidden ; sori large, prominent, scattered, ultimately covering the whole of 

 the upper part of the froud. P. rupestre, R. Br. Hk. Sp. 5. p. 46. (in part}. 

 Hk. Sf Gr. t. 44, 93. 



Hab. Australia and New Zealand, eastward to the Society Islands. Differs from 

 P. glabrum, Mett., by its broader barren fronds and copious irregularly scattered sori. 



278. P. (Niph.) adnascens, Sw. ; rhizome firm, but slender, the scales linear, 

 deciduous ; st. J-l in. 1., firm, erect ; fr. dimorphous, the barren ones elliptical 

 or spathulate, blunt, the fertile ones longer and narrower, 6-12 in. 1., ^-^ in. br. ; 

 texture coriaceous ; upper surface naked, lower thinly coated with whitish 

 tomentum in the barren but more densely in the fertile part beneath ; veins 

 hidden ; sori small, bright- coloured, immersed, occupying the whole of the 



