﻿71. POLYPODIUM. § 6. PLEOPELTIS. b**. PLEURIDIUM. 649 



(1766) p. l¥erneri, Rst., Fed., Rep., V, 43. 



Rhizome wide-creeping, whitish-glaucescent, clothed with lanceolate-trian- 

 gular, acuminate, entire, rufous-brown scales. Stipes slender, + 10 c.M. long, 

 5 — 10 c.M. apart, stramineous, naked. Barren fronds broadly ovate-lanceolate, 

 + 18 c.M. long, + 6 c.M. broad near the base, the apex acuminate, the 

 acumen + 4 c.M. long, narrow, the edge entire, the base cuneate or sub- 

 rotund, slightly decurrent; fertile fronds rather similar but narrower, 3—4 

 c.M. broad. Texture chartaceous; surfaces naked; costa prominent beneath; 

 main veins erecto-patent, nearly straight, prominent on both sides; areolae 

 in 8 — 9 rows on each side of the costa, with many free veinlets. Sori in 1 

 row between the main veins, in pairs, sub rotund or (principally the lower 

 ones) oblique-oblong or rarely conduplicate, slightly immersed. 



New Guinea. 



♦ (177) P. Zippelii, m., Rac, Flor. Btz., I, 105; Bl., Flor. Jav., II, 

 172, tab. LXXX; P. oxyphyllum, Kze., Bot. Zeit., 1848, 116; Pleopeltis ZippeHi, 

 Moore, Bedd., Handb. Ind. Ferns, 557; — var. sparsisorum. 



Rhizome creeping, dark-coloured, the scales lanceolate, with the base 

 peltate, the margin ciliate or shortly toothed, the point acute. Stipes distant, 

 1 — 10 c.M. long, firm, erect, naked. Fronds lanceolate, 25 — 70 cM. long, 

 3 — 10 c.M. broad, the edge entire or repand, both ends narrowed, the apex 

 acute, the base gradually decurrent upon the stipe. Texture herbaceous but 

 firm; surfaces naked; costa conspicuous, sometimes with a few scales beneath 

 in the lower part; main veins distinct nearly to the edge; areolae large, 

 with included smaller ones, with numerous free veinlets. Sori distant, in 2 

 rows near the main veins, 2 — 4 — 6 in a row. 



Var. sparfsifsorum : Sori scattered irregularly. 



Malacca, Java, Borneo, Philippines; North. India 



• (178) P. niembranaeeuiii, Ifon, Hk. Bk., Syn. Fil., 360; 

 Pleopellis membranacea, Moore. Bedd., Ferns S.I., tab. CLXXVII; — var. gran- 

 difolium; P. grandifolium, Wall., List, No. 282. 



Rhizome firm, the scales ovate, acuminate, spreading, membranaceous, 

 lurid-green. Stipes — 12 '/j c.M. long, firm, erect, approximate or subtufted. 

 Fronds 30 — 90 c.M. long, 2—15 c.M. broad, lanceolate, narrowed towards 

 both ends, the base decurrent, the edge entire or more or less sinuate. Tex- 

 ture thinly herbaceous or membranaceous; surfaces naked; main veins dis- 

 tinct; areolae large, distinct, copious, with finer secondary areolae and free 



