348 48. POLYPODIUM, CAMPYLONEURON. 



latter in 2 rows between the main veins. /3, P. ensifolium, Willd. ; fr. very 

 narrow, sessile, the areolse and sori in 1 row between the edge and midrib. 

 Hk. Sp. 5. p. 40. 



Hab. Cuba and Mexico to Peru and Brazil. Very variable. The broadest form 

 (P. amphostemon, Kze.) is about 1 in. br. with 4 rows of sori, whilst the narrowest 

 (P. solutum, Klotzsch) has sometimes only uniserial areolee with a single sorus in each, on 

 a free veinlet, as in Goniophlebium. 



268. P. (Camp.) lucidum,'Beyr. ; rhizome short-creeping ; st. short, firm, erect ; 

 fr. 6-12 in. 1., -f in. br., narrowed to both ends, the edge entire ; texture rigid ; 



both sides very glossy ; veins immersed, hidden ; areolce in 2-3 irregular rows ; 

 the sori not copious and confined to the upper part of the frond. Hk. Sp. 5. 

 p. 41. P. nitidum, Fil. Ex. t. 12. (non Kaulf.). 



Hab. Venezuela and Brazil. Very near the last, with which Mettenius unites it. 



269. P. (Camp.) sphenodes, Kze. ; rhizome slender, wide-creeping, the linear 

 scales spreading, soon falling ; st. 4-6 in. 1., stramineous, glossy, wiry ; fr. 4-8 

 in. 1., 1^-3 in. br., the apex very cuspidate, the lower part narrowed gradually, 

 the edge thickened and wavy ; texture coriaceous ; both sides naked ; areolce in 

 rows of 6-8 between the midrib and edge, with 2 small distinct sori in each. 

 Hk. Sp. 5. p. 42. t. 282. 



Hab. Columbia and Ecuador. This and the next are known from the other species 

 by their more distinct stems. 



270. P. (Camp.) coarctatum, Kunze ; rhizome wide-creeping ; st. 5 in. 1. ; 

 fr. I ft. 1., 2-3 in. br., oblong, the point acuminate or cuspidate, the base 

 narrowed gradually ; texture coriaceous ; both sides naked ; areolce in rows of 

 12-15 between the midrib and edge, with two sori in each. Mett. Polyp, p. 84. 



Hab. Peru, Poppig. We have not seen this, and are indebted to Mettenius for the 

 description . 



271. P. (Camp.) lapathifolium, Lam. ; rhizome woody, wide-creeping, the 

 scales spreading, lanceolate, dark-brown ; st. 1-6 in. 1., firm, erect ; fr. 6-18 in. 1., 

 f-l|- in. br., the apex acuminate, the lower part narrowed very gradually, the 

 edge subentire ; texture coriaceous ; main veins not distinct to the edge, with 3-5 

 areolae between the midrib and edge, with one or two sori in each. P. fasciale, 

 Willd. Hk. Sp. 5. p. 41. 



Hab. West Indies and Guatemala to Brazil and Ecuador. The venation ranges 

 between that of Campyloneuron and Goniophlebium, being sometimes more like one, 

 sometimes the other. C. minus and cubense, F6e, seem to belong here. 



272. P. (Camp.) repens, L. ; rhizome slender but firm, wide-creeping, tortuous, 

 the scales linear, deciduous ; st. scattered, 1-5 in. 1., firm ; fr. 6-18 in. 1., 1-3 in. 

 br., entire or slightly sinuated, the point acute, the base narrowed very gradually ; 

 texture papyraceous or subcoriaceous ; both sides naked, opaque ; main veins 

 often wavy, distinct nearly or quite to the edge ; areolce in rows of 5-10 between 

 the midrib and edge, with 2 sori in each. Hk. Sp. 5. p. 39. 



Hab. Mexico and W. Indies to Peru and Brazil. Distinguished from the preceding 

 by its regular areolation and sori, from the next, with which Grisebach unites it, by its 

 thinner substance, less prominent veins and usually longer stem. P. nitidum, Kaulf., 

 differs from this by its more rigid texture and glossy surfaces, and P. Lindigii, Mett., 

 has paraphyses intermixed amongst the capsules and persistent lanceolate scales. 



273. P. (Camp.) PhylZitidis, L. ; rhizome stout, hypogaeous, clothed with 

 deciduous cordate brownish scales ; st. scattered or subtufted, short, or some- 

 times none ; fr. 1-3 ft. L, 1-4 in. br., the point acute, the lower part narrowed 



