22. DRYOPTERIS. 231 



% 3. CYCLOSORUS. 



*. i Fronds to 60 cm. long, or the raehis not naked. (120) D. Blumei. 



itoic. Fronds 60 cm. or more long, the raehis naked. (121) D. nephrodioides. 



(120) D. Blumei, v. A. ». «.,• D. cmescens, C. Chr., Ind. Pil., p. p', ; 

 Nephrodium Blumei, J. Sm., Journ, of Bot., Ill, 411; N. subdimorphum, Christ, 

 Fil. Saras., I, 16; N. cmiescens, Christ, Copel, Palypod. Philipp., 27, p. p.; 

 Aspidium- canescens, Christ, forma nephrodiiformis, Christ, Ann. Btz., XV, 130 — 131. 



Rhizome short-creeping or erect, nearly naked. Stipes 5 — 20 c.M. long, 

 scaly at the base, ± hairy above. Fronds 10 — 30 c.M. long, with a long, 

 acuminate, terminal pinna 5 — 10 c.M. long, cut to + V2"Way down into 

 blunt lobes. Lateral pinnae few or to 14 on each side, alternate, 2 — 6 c.M. 

 long, 1 — 3 c.M. broad, the apex blunt, the edge slightly lobed, the base + 

 adnate to the raehis; lower pinnae deflexed, sometimes much reduced. Tex- 

 ture papyraceous to herbaceous ; surfaces naked, or hairy on the veins ; raehis 

 hairy; only the lowest veins anastomosing. Fertile fronds often on the longest 

 stipes, with the pinnae sometimes shorter and narrower than in the barren 

 ones. Sori near the main veins^ or + medial on the veins. 



Celebes, Philippines; Fiji.'-^.\^^.^_^^^^ 



(121) ». nephrodioides, O.ntze, Rev. Gen. PL, II, 811; D. or- 

 bicularis, C. Chr., Ind. Fil.; Aspidium Hookeri, Bk., Hk. Bk., Syn. Fil, 257; 

 A. nephrodioides, Hk., Spec. Fil., IV, tab. CCXXXV. 



Stipes 30 c.M. or more long, naked, erect. Fronds 60—90 c.M. long, 

 ± 30 c.M. broad. Pinnae 15—20 c.M. long, + 1% c.M. broad, cut down 

 to a broadly winged raehis into nearly close, spreading, entire, linear-oblong 

 lobes + S'/j m.M. broad. Texture herbaceous, raehis naked, substramineous ; 

 veins slightly hairy, about 10 on a side, the lowest pair uniting. Sori nearer 

 the edge than the midribs ; 'indusium membranaceous, reddish in the centre, 

 scariose in the outer half. 

 'a. 



S3. ]MESOOH[LAErSr.A., «. Brown. 



Sori oblong, medial on the veins. Indusium oblong, fastened by its longi- 

 tudinal axis, opening all round the edge. 



