666 71. POLYPODIUM. § 6. PI.KOPELTIS. C*. PHTMATODES. 



beyond the costal ones fine; free veinlets abundant. Soril in each costal 

 areola, sunk in deep cavities, very pruuiinent on the upper surface. — The 

 young plants have the fronds simple or 5-fid. 



Malaya; Polynesia, Trop. Australia, Ceylon, South. India. 



(211) P. Schneider!, ChtHst, Bull. Herb. Boiss., VI, 835. 



Rhizome wide-creeping, the scales ovate, acute, pellucid, with the margin 

 toothed, pale-brown. Stipes distant, the base broad, very stout, firm, + 

 60 c.M. long, terete, naked, brownish in the lower part, the upper part yel- 

 lowish to purpureous like the costa. Fronds ± 100 c.M. long, to ± 18 

 C.M. broad, linear-lanceolate. Segments + 24 on each side, linear-lanceolate, 

 erecto-patent, alternate, the higher ones subopposite, ± 1 '/a c.M. broad, ± 2 

 c.M. apart, + 12 c.M. long, acuminate, with the margin entire or undulate, 

 rarely denticulate at the apex, and the bases decurrent, joined so as to form 

 a narrow wing 1*/^ c.M. broad, with rounded sinuses; lower lobes mode- 

 Aitely obtuse, ± 8 c.M. long. Texture thinly papyraceous; surfaces naked; 

 costa very prominent; costulae yellowish, very prominent; veins conspicuous, 

 fine, prominent, dark-coloured, spreading, straight, forked; areolae subpeutago- 

 nal, including smaller areolae with free veinlets. Sori large, roundish, occu- 

 pying the upper part of the frond, 1-serial on each side of the costulae, 

 nearer the costulae than the margin and commonly close to the former, 12 — 15 

 in a row, remote, immersed, forming papillae on the upper surface of the 

 frond. 



Sumatra. 



* (212) P. longissimum, BL, Rac, Flor. Btz., I, 112; Bl., Flor. 

 Jav., II, 159, tab. LXVIII; Pleopellis loM/issima, Moore, Bedd., Ferns S. Br.L, 

 Suppl., tab. CCCLXXXVIII; — var. batjanense, Christ, in Warb., Mons., 1,62- 



Rhizome wide-creeping, the scales ovate or broadly lanceolate, blunt, 

 thin, adpressed. Stipes scattered, 15—120 c.M. long, firm, glossy, naked. 

 Fronds elongate, 30 — 120 c.M. long, 10 — 30 c.M. broad, cut down nearly to 

 the costa into numerous erecto-patent lobes. Lobes linear, bluntisli or acute, 

 entire or nearly so, 7—20 c.M. long, '/j — 2 c.M. broad, the bases connected 

 by a costal wing + 1 — 2 m.M. broad, the sinuses rounded. Texture sub- 

 coriaceous; surfaces naked; veins forming large, distinct costular areolae and 

 in and beyond these irregular smaller ones with free veinlets; main veins in- 

 distinct, not reaching the margin. Sori deeply immersed, round, in single 

 rows on each side near the costulae. 



