48. POLYI'ODIUM, PHYMATODES. 355 



307. P- (Phym.) soridens, Hk. ; rhizome wide-creeping, the scales squarrose, 

 linear, reddish ; st. 1-3 in. 1., slender, naked ;fr. 4-12 in. 1., - in. br., narrowed 

 very gradually to both ends, the barren ones entire, the fertile ones repand ; 

 texture rigid, coriaceous ; both sides glossy ; areolce fine, irregular, free veinlets 

 rare ; sori 1 to each lobe, deeply immersed, and forming very distinct papillae on 

 the upper side. Hk. Sp. 5. p. 61. t. 283. B. 



Hab. Borneo, Wallace, Lobb. 



308. P. (Phym.) sinuosum, Wall. ; rhizome forming a crust which enwraps the 

 matrix, clothed with peltate scales, black in the middle and white round the edge, 

 the Astern arising from a conical protuberance, 1-2 in. 1., firm, naked ; fr. dimor- 

 phous, the barren ones 3-6 in. 1., -1 in. br., the edge entire, the fertile ones longer, 

 and the edge repand ; texture coriaceous ; both sides naked ; veins obscure ; sori 

 large, immersed, round or oblong, marginal or submarginal. Hk. Sp. 5. p. 61. 



Hab. Malaccas, Amboyna, New Hebrides, Solomon Isles. 



309. P. (Phym.) longifolium, Mett. ; rhizome woody, short-creeping, the scales 

 linear, nearly black ; fr. 1-2 ft. 1., ^-1^ in. br., the apex acute, the edge entire, 

 often revolute, the lower part narrowed very gradually into a short firm stem ; 

 texture coriaceous, the lower surface naked or subfurf uraceous ; main veins none ; 

 areolce fine, hidden, with copious free veinlets ; sori oblong, quite immersed, placed 

 end to end a space from one another in a line close to the edge, the caps, mixed 

 with minute stalked peltate scales. Hk. Sp. 5. p. 60. 2nd Cent. t. 87. Fil. Ex. 

 t. 20. Paragramma, Moore. 



Hab. Malaccas and Philippines. 



310. P. (Phym.) Brownii, Wickst. ; rhizome woody, wide-creeping, the scales 

 lanceolate, dull-brown ; fr. scattered, 6-18 in. 1., - in. br., ligulate, the point 

 bluntish, the edge entire or slightly repand, the lower part narrowed very gra- 

 dually to a base or short stem ; texture very coriaceous, rigid ; areolce uniform, 

 without free veinlets ; sori large, prominent, oblong, immersed, in a single row 

 end to end a space from one another midway between the midrib and edge. 

 P. attenuatum, R. Br. Hk. Sp. 5. p. 58. G. F. t. 30 (not H. B. K>). Dictymia, 

 J. Sm. 



Hab. Australia, New Caledonia, Fiji. 



311. P. (Phym.) superficiale, Blnme ; rhizome woody, wide-creeping, the scales 

 lanceolate, spreading, brown, shining ; st. 4-6 in. 1., firm, naked, often curved ; 

 fr. 6-12 in. 1., 1-2 in. br., narrowed gradually at both ends, the edge entire ; 

 texture subcoriaceous ; both sides naked ; areolce fine, irregular, with free veinlets ; 

 sori copious, scattered irregularly. Hk. Sp. 5. p. 71. 



Hab. N. India (up to 5-6,000 ft.), Tsus-Sima, Hong-Kong, Malaccas. Characterized 

 in the group by its large, copious, irregularly-scattered sori. 



31 2. P. (Phym.) Schomburghianum, Kze. ; rhizome \-l in. thick, densely clothed 

 with spreading lanceolate scales, with a broad scariose border ; st. distant, 1-2 

 in. 1., firm, erect ; fr. 12-18 in. 1., li-3 in. br., entire, narrowed at both ends ; 

 texture coriaceous ; both sides naked, the margin thickened, no distinct main 

 veins ; areolce copious, fine, with free veinlets ; sori large, not immersed, in single 

 rows not far from the midrib. Hk. Sp. 5. p. 68. 



Hab. Guiana and Amazon Valley. 



