48. POLYPODIUM, §§§§§ EUPOLYPODIUil. 331 



166. P. rigescens, Bory ; rhizome stout, creeping, densely clothed with dull- 

 brown linear scales ; St. 1-3 in. 1., wiry or slightly villose, naked ; fr. 6-12 in. 1., 

 J in. or more br., cut down to the rachis into close entire blunt linear-oblong 

 pinnae i in. br., the lower ones reduced ; rachis black, wiry ; both surfaces naked, 

 the under one sometimes glaucous ; veinlets hidden ; sori in rows of 4 to 5 on 

 each side. — Hi:. Sf Gr. Ic. t. 216. 



Hab. Caba to Cbili and Brazil ; Bourbon, Fernando Po. — A plant from Dr. Sprnce 

 has a rigid rhizome 2 ft. 1., clothed with large ovate-lanceolate scales, and the fronds are 

 quite sessile ; and another has fronds 18 in. L, 2 in. br., with 6-9 sori in a row. ^ 



167. P. fuscatum, Blume ; St. tufted, 1-3 in. 1., densely clothed with soft spread- 

 ing hairs ; fr. 3-6 in. 1., \-\ in. br., cut down nearly or quite to the rachis 

 throughout into close entire obtuse pinnce ^ lin. br., the lower ones shorter and 

 broader ; texture ^ubcoriaceous ; rachis and both sides thinly clothed with soft 

 hairs ; veins obscure, simple ; sori forming a close row on each side the midrib, at 

 last filling nearly the whole surface. — Mk. Sp. 4. ju. 181. 



Hab. Java and Ceylon. 



168. P. decorum, Brack. ; rhizome creeping, densely clothed with linear scales ; 

 St. 1 in. or less 1., rigid, naked ;Jr. 6-12 in. 1., ^1 in. br., cut down nearly or quite 

 to the rachis into entire linear blunt pinnCB about 1 lin. br., the lower ones growing 

 gradually shorter and blunter ; texture coriaceous ; both sides naked, or the rachis 

 hispid ; »eires obscure ; sori immersed, in 2 rows of 4 to 6 each, filling up the 

 whole space between the midrib and edge. — Bk. Sp. i. p.1 79. _ 



Hab. Ceylon, Malaya, and Philippines to Tahiti and Sandwich Isles. — ^This is referred 

 to P. nuia/ns (Blnme) by Mettenius, but the figure and description do not quite agree 

 with it. 



169. P. blechnoides, Hk. ; rhizome stout, clothed with dense linear scales ; st. 

 2-3 in. 1., rigid, erect, naked ; /r, 8-12 in. 1., 1-1^ in. br., cut down very nearly 

 to the rachis throughout ; fertile pinnoe confined to the upper half of the frond, 

 longer and narrower than the barren ones, which are bluntish, about J in. br., 

 growing gradually shorter and broader downwards ; texture coriaceous ; rachis 

 and both sides naked ; sori oblong, immersed, in rows near the midrib. — Hk. Sp. 4. 

 p. 180. Cryptosorus Seemanni, J. Sm. 



Hab. Polynesian Islands and Queensland. 



170. P. Lohhianum, Hk. ; rhizome short-creeping, stout, densely scaly •,fr. sub- 

 sessUe, 4-6 in. 1., j-1^ in. br. ; pinnce numerous, close, J lin. br., the edge with 

 distinct rounded crenations, lower ones graduailly reduced ; texture coriaceous ; 

 rachis wiry, ebeneous ; both sides quite naked ; ueitllets simple, indistinct, 1 to 

 each lobe ; sori immersed, small, copious. — Hk. Sp. 4. p. 226. t. 278. B. 



Hab. Borneo, T. Lobb. — This and the three last are the most rigid in texture of the 

 group. 



171. P. argyratum, Bory ; rhizome stout, the scales linear, ferruginous ; St. 2-3 

 in. 1., wiry, naked ; fr. 4-6 in. 1., 1^2 in. br., cut down to the rachis into close 

 horizontal nearly entire pinncB J in. br., narrowed gradually upwards ; texture 

 suhcoriaceous ; under surface coated when young witli white meal, which dis- 

 appears as the plant grows older, for the rest naked ; veitilets immersed ; sori 

 marginal, 4 to 8 on each side.— Hk. Sp. 5. p. 198. 



Hab. Bourbon and Mauritius. 



172. P. Skinneri, Hk. ; rhizome wide-creeping, clothed with broad pale ad- 

 pressed scales ; St. 2 in. 1., rigid, deciduously scaly ; fr. 6-9 in. I., li-2 in. br., cut 

 down nearly or quite to the rachis into numerous close horizontal linear slightly 

 crenated pinnae not more than 1 lin. br., with a rounded sinus between them ; 



