22. DRYOPTBRIS. § 1. LASTRAEA. 197 



* (44) D. sparsa, O. Ktiee, , C. Chr., Ind. Pil.; Aspidium sparsum, 

 Spr., Rac, Plor. Btz., I, 175; Lastraea sparsa, Moore, Bedd., Ferns S.I., tab. 

 CIII; Nephrodium sparsum, Don, Hk. Bk., Syn. Pil, 276, p.p.; — var. Raapii. 



Rhizome suberect; the scales dense, light-brown, entire, thin, oblong. 

 Stipes 15—40 c.M. long, ± scaly. Pronds 30—60 c.M. long, 10—30 c.M. 

 broad, 3 — 4-pinnatifid at the base. Pinnae distant, short-stalked, 3 '/a — 10 

 C.M. broad, acuminate. Highest pinnae simple, oblong, blunt, obliquely cuneale 

 at the base. Lowest pinnulae largest, short-stalked, blunt or acute, 1—2 X 

 pinnatifid at the base, those on the lower side prolonged. Ultimate free 

 segments obliquely cuneate at the base, the apex mostly blunt; ultimate lobes 

 oblong, blunt, the margin toothed with few, distant, sharp, small teeth, the 

 teeth not rarely solitary on the anterior side of the larger lobes. Texture 

 firm, membranaceous to papyraceous; rachis stramineous or brownish like 

 the stipe, naked like both surfaces. Sori + near the costae, often 1 to each 

 ultimate lobe. 



'Wa.v. Raapii: Lower ultimate segments truncate or subcordate at 

 the base. Each lobe with a single, small tooth on the upper side, often 

 nearly in the top of the sinus. (*). 



Malaya; South. China, North. India, Ceylon, Mauritius; — var. Raapii : 

 Tioblong (Raap, No. 3). 



* (45) — O . Bacihop s kii, v . JL . « ■ H . j Atpidivm uirfemnidefi Rne^ 



(not Mett.), Plor. Btz., I, il79. See the Appendix. ^^ 



Stipes long, clothed with lanceoIateTcalesand gland-like hairg.^ronds 

 deltoid-lanceolate, to 100 c.M. long, to 60 c.M. broad. Pinnae^>fge, distinctly 

 stalked, deltoid, the stalks to ± 4 c.M. long. Pinnulae^l^eolate or lanceo- r-; 

 late-oblong, short-stalked, the lowest posterior ox^eiSihe longest, the higher "| 

 ones oblong, sessile, decurrent at the base^^ highest ones united at the g 

 base by short, intermedial lobes, the loijg^to 18 c.M. long, to 8 c.M. broad, g 

 deeply pinnatifid or rarely subrnpaJite at the base. Tetriary segments to 4 [m 

 c.M. long, 1—1 Vj c.M. broa^^'^ntish or acute, the smaller ones entire, the | S 

 larger ones toothed or n«lfaeeply lobed. Texture herbaceous; rachises finely 

 short-hairy; bothjMfffeces sparingly fibrilloso-pilose ; main veins (and veins) 

 forked or pinjijrte in the ultimate lobes ; between each 2 lowest veins of conti- 

 guous ffj!<rtlps is a free, simple, forked or pinnate vein which unites the midrib 

 wjttr^e top of the sinus. Sori nearer the edge than the main veins. 



Jmai — __^_^^^— _^— — 



(*) See also O. pnrpurascens, v. A. v. R. 



