198 22. DRYOPTERIS. § 1. LASTRAEA. 



* (46) D. reccdens, O. Rtjse, C. Chr. Ind. Fil.; Lastraea recedens, 

 J. Sm., Bedd., Ferns S.I., tab. XCVIII: Nephrbdium recedens, Hk., Hk. Bk., 

 Syn. Fil., 281. 



Rhizome wide-creeping. Stipes about 30 c.M. long, erect, villose, clothed 

 at the base with squarrose, linear scales. Fronds 45 — 60 c.M. long, 30 

 c.M. or more broad, deltoid. Lower pinnae much the largest, 7 — 13 c.M. 

 broad. Pinnulae of Ihe lowest side the largest, often 12 '^ c.M. long, to 5 

 c.M. broad, with distinct, lanceolate segments. Segments decurrent, with 

 close, entire or slightly toothed, .acute, linear-oblong lobes. Texture firm; 

 rachises villose; under surface naked or villose. Sori small, 6 — 8 round the 

 edge of the larger lobes. 



Java, Philippines; Ceylon, South. India. 



(47) ? D. borneensis, O.Kt»e, C. Chr., Ind. Fil.; Lastraea bomeen- 

 sis. Ilk., Icon. PL, X, tab. XMIU; Nephrodium borneense, Hk., Hk. Bk., Syn. 

 Fil., 273; Davallia bomeensis, J. Sm., Mett., Ann. Mus. Bot. L. B., IV, 286. 



Rhizome wide-creeping, stout, densely fibrillose. Stipes + 15 c.M. long, 

 firm, erect, brown, naked. Fronds 30 — 45 c.M. long, 10—15 c.M. broad, 

 lanceolate. Pinnae 5 — 8 c.M. long, 2 — 2'/j c.M. broad, cut down to a broadly 

 winged rachis into linear-oblong, deeply pinnatifid lobes. Texture subcoriaceous; 

 rachis and veins beneath finely villose; veins about 6 on a side. Sori + 

 midway on the veins; indusium coriaceous, persistent. — Habit ofD. flaccida, 

 0. Ktze, but different in texture and mode of growth, in which it approxi- 

 mates Davallia (Bk.). 



Borneo. 



(48) D. Millettii, C. Chf., Ind. Fil.; D. setosa, 0. Ktze, Rev. Gen. 

 PI., II, 813; Nephrodium setosum, Bk., Hk. Bk., Syn. Fil., 274. 



Stipes tufted, 10—15 c.M. long, densely clothed with fibrillose scales. 

 Fronds 50—45 c.M. long, 15—25 c.M. broad. Lowest pinnae largest, 

 deltoid, 5 — 8 c.M. broad. Pinnulae lanceolate, S'/j— 5 c.M. long, cut down to 

 the rachis below into erecto-patent, entire, linear segments. Texture herba- 

 ceous; rachises densely fibrillose; both surfaces naked; veins of the segments 

 5—6 on a side, the lower ones forked. Sori in a line close to the coslulae. 



Java. 



(49) I*, padangeiisis, C. Chr., Ind. Fil.; Lastraea padangenm, 

 Bedd., Handb. Ind. Ferns, Suppl., 60. 



