22. DRYOPTERIS. § 1. LASTBAEA. 188 



reduced. Texture subcoriaceous; rachis naked; under surface ± glandular; 

 veins numerous. Sori in close rows near the midribs of the lobes. — 

 General habit of Mesochlaena polycarpa, Bedd. (Bk.). 

 Philippines, Celebes, Amboyna, New Guinea. 



(14) D. Beecariana, C. Chr., Ind. Fil.; Nephrodium Beccariamm, 



Ces., Fel. di Bor., 23. 



Near D. attenuata, 0. Klze. Especially the lower pinnae moderately long- 

 stalked, long-acuminate, divaricating. — Stipes lucid, the base clothed with 

 linear-subulate, brown, entire, lucid scales. Surfaces naked. Sori less nu- 

 merous; indusium coriaceous. 



Borneo. 



(15) D. Creaghii, C. Chr., Ind. Fil.; Nephrodium Creaghii, Bk., 

 Kew Bull., d898, 230. 



Stipes stramineous, naked, 35 — 40 c.M. long. Fronds oblong-lanceolate, 

 2-pinnatifid, + 43 c.M. long, + 15 c.M. broad at the middle. Pinnae multi- 

 jugate, sessile, lanceolate, deeply pinnatifid, 2 — 272 c.M. broad, the lower ones 

 not reduced. Lobes linear-oblong, entire, obtuse, + S'/i m.M. broad. Tex- 

 ture moderately firm; upper surface naked, under one obscurely pubescent; 

 veins simple, erecto-patent, 7 — S-jugate. Sori small, medial; indusium naked, 

 persistent. 



Bwneo. 



(16) D. vulcanica, C. Chr., Ind. Fil.;- Nephrodium vulcanicnm, Bk. 

 Ann. of Bot., VIII, 127. 



Stipes naked, slender. Fronds oblong-lanceolate, + 45 c.M. long, deeply 

 2-pinnatifid. Pinnae sessile, multijugate, lanceolate, acuminate, cut down 

 nearly to the costa, the lower ones 6'/a— 'Va c.M. long, I'/a— ^ c.M. broad, 

 not reduced. Lobes linear-oblong, ± 2*/j m.M. broad, entire, the.Hower ones 

 very small. Rachis slender; surfaces naked except on the costae; main veins 

 pinnate; veins 6 — 8-jugate, simple, immersed, obscure. Sori small, medial; 

 indusium naked, persistent, reniform, with a deep sinus. 



Java. 



* (17) D. calcarata, O. tUise, C. Chr., Ind. Fil.; Aspidium cal- 

 caralum, BL, Rac, Flor. Btz., I, 110; Lastraea calcarata, Moore, Bedd., Ferns 

 S.I., tab. CCXLVI; L. falciloba, Hk., Beid., I c.,tah.CV; Nephrodium falcilobum, 



