164 POLYPODIUM, ^ F.UrOLYPODlUM. 



* Fronds simple and entire (not distinctlif lobed or divided). Sori not unfre- 

 quently oblong ; hence, includivg species of GYiixnm\t\% of authors, 1-27. 



1. P. (Eupolypodium) bisulcatum. Hook.; caudex long 

 creeping clothed with subulate scales, fronds distant very 

 coriaceous 8-10 inches long less than a line wide linear ob- 

 tusely five-angled (two longitudinal soriferous furrows at the 

 back) acuminate gradually tapering into a very short stipes 

 articulated on the caudex, veins quite obsolete, sori oval 

 prominent. — Hook. Ic. Plant, t. 998 [or Cent, of Ferns, 

 t. 98). Holcosorus, Moore, Ltd. Fit. p. 29. 



Hab. Borneo, near Sarawak, Thos. Loljh. — A very remarkable species, of which 

 I have seen no specimens but those of Mr. Lobb. Tlie fronds resemble the culms 

 of some very rigid Juncus. 



2. P. (Eupolypodium) niarginelhim, Sw. ; caudex small 

 erect or ascending rooting paleaceous above with glossy 

 brown small lanceolate scales, stipites 1—3 lines long caespi- 

 tose pilose, fronds firm subcoriaceous 3 inches to a span 

 long 2 lines to ^ an inch wide linear spathulate and obtuse 

 or linear-lanceolate and more or less acute below gradually 

 tapering into the stipes glabrous entire or with a few hairs on 

 the back and ciliated pale beneath with a narrow almost 

 black callous margin, fertile in the upper half or often for its 

 whole length, veins oblique simple, sori copious oval ap- 

 proximate forming two almost uninterrupted lines nearer the 

 costa than the margin. — Siv. Ft. Ind. Occ. p. 1631. Metten. 

 Polypod. p. 34. Grammitis, >SV(7. Syn. Fil. p. 22. Willd. Sp. 

 PL \. p. 139. Schk. Fil. p. 8. t. 7. Mecosorus, Kl. in 

 Linnaa, xx. p. 405. Grammitis limbata. Fee, Gen. Fil. p. 

 233, 6me Mem. Fovg. p. 6. t. 5.f.\. 



Hab. Tropical America. West Indies : Jamaica, Swartz, Bancroft, Wilson ; 

 Guadeloupe, EHerminier. Venezuela, Schomfmrgk, Fendler, n. 256. Porto 

 Rico, Schwanecke. British Guiana, Richd. Schomburgk. Near Tarapota, Eastern 

 Peru, Spruce, n. 4643 (Gram, nigro-limbata, Spruce, MS.). St. Helena, Menzies ; 

 Diana's Peak, J. D. Hooker, Nuttall, and in Herb, nostr. ex Herb. Dicks. — 

 Schkuhr's figure well represents a small form of this plant, as does that of M. 

 Fee, for the larger-sized specimens. Between this and P. australe (our n. 8) I 

 can really point out no difference, save in the generally distinct but slender dark- 

 coloiued calloiC margin, best seen on the under side of the frond of the present 

 species, and which suggested the specific name. 



distinct genus from the other free-veined species of Polypodium, which, indeed, 

 Presl never intended, but a group or subsection, with the character " sori in dorso 

 medio venarum venularumve." To me there appears to be no tangible character. 

 They are the most compound species of Eupolypodium. Mettenius, so cautious of 

 multiplying genera needlessly, nevertheless retains Phegopteris. Mr. Moore, on 

 the other hand, unites it with Eupolypodium. 



