﻿626 71. POLYPODIUM. § 6. PLEOPELTIS. a**. LECANOPTERIS. 



« (127) !•. Mien^ivenliiiiNii, ». A. v. «.,• Lecmopteris Nieuwen- 

 huisii, Christ, Ann. Btz., XX, 127, tab. Ill, fig. 1; C. Chr., Ind. Fil. 



Rhizome naked, inflated, thick. Stipes 4 — 6 c.M. long, firm, naked, stra 

 mineous like the rachis. Fronds linear-lanceolate, ± 40 c.M. long, ± ^% 

 c.M. broad, acuminate, narrowed gradually towards the base, the edge deeply 

 pinnatifid nearly to the costa. Lobes + 25 on each side below the long 

 terminal one; lower lobes oblong, entire, barren, the central and higher 

 ones fertile, sinuato-lobate, the central ones ± 3 c.M. long, ± 1 '/2 — 2 c.M. 

 broad. Soriferous outgrowths rather close, semiorbicular (the apex and sinuses 

 rounded), subspreading, turned back on the upper surface of the frond, with 

 the deeply immersed sori facing upwards. Texture firm, pellucid when dry; 

 surfaces naked ; costulae and main veins visible; areolae fine, with free veinlets. 

 Sori large, 1 to each outgrowth, + 5 — 6 on each side, deeply immersed so as 

 to form semiglobose, ± cucuUate, mamillary papillae on the upper surface. 



Borneo. 



• (128) P. defiaroides, Clirt*#, Farnkr. d. Erde, 116; Davallia 

 deparoides, Ces., Fel. di Bor., 15; Lecanopleris deparoides, Bk., Journ. of Bot., 

 XIX, 566; C. Chr., Ind. Fil.; Cyathea deparoides, Ces., 1. c, tab. IV. 



Rhizome + 3 c.M. thick, creeping, tortuous, thinly pubescent, afterwards 

 pulverous, at length naked, tuberculous, yellowish-brown. Stipes stramineous, 

 naked. Fronds erect, to ± 65 c.M. long. Pinnae to 40-jugate, opposite, 

 linear, obtuse, lobato-dentate, the lower ones free, + 4^2 c.M. long, the fol- 

 lowing ± 5 c.M. or more long, 6 — 8 m.M. broad, the higher ones growing 

 gradually shorter, connected by a narrow wing. Texture firm ; surfaces naked ; 

 costae and main veins distinct ; areolae with free veinlets. Sori on the lobe-like 

 teeth, deeply immersed, 1 to each tooth, the teeth turned back on the upper 

 surface of the frond, induplicate, twisted, the cavities becoming oblong with the 

 opening facing towards the apex of the pinna so as to form spurious iudu- 

 sia resembling those of Davallia. — Cesati's drawing does not agree with 

 Teysmann's Karimata plant (Becc, Mai., II, 244 — 245), which has the sori- 

 ferous teeth distinctly inflexed and twisted. 



Borneo, Sumatra. 



(129) P. llacleayi, v. A. t>. n.s Lecanopteris Macleayi, Bk., Becc, 

 Mai., II, 244; C. Chr., Ind Fil. 



Like P. deparoides, Christ, but the sori terminal on the teeth, not in cavities. 

 Java. 



