﻿202 22. DRYOPTERIS. % 1. LASTRAEA. 



reddish- or blackish-brown; surfaces naked; secondary rachises slightly scaly 

 benealh: veins 4—6 on each side. Sori + medial, mostly 1 to each lobe. — 

 Resembling D. sparsa, 0. Kize, but larger and more divided. 



Malaya. 



* (57) I>. creiiata, O.ntxe, C. Chr., Ind. Fil. ; Aspidium crenalum, 

 Kuhn, Christ, Farnkr. d. Erde, 262 ; Laslraea crenaia, Bedd., Handb. Ind. Ferns, 

 2.^8; L. criocarpa, Pr., Bedd., Ferns S.I., tab. XCX; Nephrodium crenalum, Bli., 

 Dials, in Engl. & Prantl, Nat. Pfl.Fam., \\ 175; N. odoralum, Bk., Hk. Bk., 

 Syn. Fil., 280; Polypodium crenalum, Forsk., (oldest name). 



Rhizome erect, stout, short ; the scales dense, bright-brown, lanceolate- 

 subulate, + 5 c.M. long. Stipes tufted, 20 — 50 c.M. long, pale-coloured, glossy, 

 the base scaly like the rhizome Fronds 20 — 40 c.M. long, deltoid. Lowest 

 pinnae nmch the longest, + 10 — 25 c.M. long, 5 — 10 c.M. broad. Pinnulae 

 laiic<'olate, often imbricate. Tertiary divisions oblong, decurrent, pinnatifid, the 

 lobes rounded. Texture herbaceous; colour pale-green ; rachis and surfaces densely 

 furnished with greyish hairs. Sori copious ; indusium large, pale-grey, hairy. 



Malacca, Philippines; Cape Verde Islands to China. 



* (58) W. rllodoEepiiS, C. Chr., Ind. Fil.; Aspidium intermedium, 

 Christ (not Bl.). Farnkr. d. Erde, 263; Lastraca Blumei, Moore, Bedd., Ferns 

 S.I., tab. CCIL; Nephrodium Blumei, Hk., Spec. Fil., IV, 155, p.p.; ^V. 

 intermedium, Bk., Hk Bk., Syn. Fil., 283; iV. rhodolepis, Clarke, Trans. Linn. 

 Soc, Bot., 2^ Series, I, tab. LXXII. 



Stipes 30— 60 c.M. long, stout, erect, densely clothed at the base with 

 loug, bright-brown, silky fibrils. Fronds 60 — 100 c.M. long, 30 — 5i) c.M. broad, 

 subdeltoid. Lower pinnae lanceolate, often 30 c.M. long, 10 — 15 c.M. broad. 

 Pinnulae close, lanceolate, with distinct, oblong-lanceolate segments, with small, 

 ligulate, subentire lobes to about 27-2 m-M. broad. Texture herbaceous, firm: 

 rachises slightly fibrillose like the stipe; under surface slightly hairy or scaly 

 on the midribs. Sori small, copious, medial or nearer the midribs than the 

 edge; indusium thin, fugacious. 



Trop. Asia; China, Japan. 



* (59) O. f§ietig'era, O.Htxe, C. Chr., Ind. Fil.; Aspidium setigerum, 

 Kuhn, Rac, Flor. Btz., I, 178; Lastraca tenericaulis, Moore, Bedd., Handb. Ind. 

 Ferns, 266; Nephrodium lenericaulc, Hk., Spec. Fil., IV, tab. CCLXIX; N. seti- 

 gerum, Bk., Hk. Bk., Syn. Fil., 284; — var, pallida; Polypodium pallidum. 



Brack., Hk. Bk., 1. c, ; D. ornata, C. Chr., var., C. Chr., Ind. Fil. 



