184 22. DRTOPTERIS. § 1. LASTRAEA. 



quite naked, the pinnae le ss deeply lob e d, tho uppor baeo auriculatc and the 



Bori botw ae n the main veins and tho margin. — 



Amboyna, New Guinea; Fiji, Mascaren Islands, Trop. Africa. 



(11) D. ligulata, O. Ktme, C. Chr., Ind. Fil.; Aspidium ligulatum, 

 Kze, Mett., Farng., IV, Phegop. & Aspid., No. 213; Nephrodium ligulatum, Hk, 

 Hk. Bk., Syn. Fil., 264. 



Stipes grey, glossy, naked. Fronds 90 — 120 c.M. long, 30 — 45 c.M. 

 broad. Pinnae 15 — 25 c.M. long, + 2 /^ c.M. broad, cut down very nearly 

 to the costa into linear, blunt, entire, erecto-patent lobes + 2'/i m.M. broad 

 and with more than their own space between them, lower pinnae slightly 

 reduced. Texture subcoriaceous; rachis and under surface finely pubescent; 

 veins + 10 — 12 on a side. Sori submarginal. 



Philippines. 



* (12) D. Hallieri, C. Chr., Ind. Fil.; Aspidium Hallieri, Christ, Ann. 

 Btz., XX, 106. 



Stipes thick, brown, opaque, clothed like the rachis with short hairs and 

 like the base of the rachis with lanceolate-subulate, spreading, brown scales. 

 Fronds ovate-lanceolate, ± 100 c.M. long or longer, + 35 c.M. broad, acu- 

 minate, hardly narrowed at the base. Pinnae of the barren fronds close, 

 sessile, spreading, caudate-acuminate, the margin incised ^/^-way down to the 

 costa, the base ± 3 c.M. broad. Segments pectinate, close, + 35 below 

 the serrate apex, + 1 c.M. long, ± 4 — 6 m.M. broad, falcate, lanceolate, 

 bluntish, the margin subentire or subcrenulate, short-ciliate, slightly inflexed. 

 Gestae, costulae and veins pubescent; veins 12—15 on each side, very promi- 

 nent. Fertile pinnae 2 — Vj^ c.M. broad, the lower ones distant; segments 

 2 — S'/s mM. broad. Sori minute, medial or subcostular, + 15 on each side; 

 indusium small or wanting (suppressed ?). 



Borneo. < 



* (13) D. attenuata, O. irtse, Rev. Gen.P\.,U, Sn, D. stenobasis, C. 

 Chr., Ind. Fil; Aspidium allenuatum, Kze, Mett., Farng., IV, Phegop. & Aspid., 

 96; Nephrodium attenuatum, Fee (not Bk.), Hk. Bk., Syn. Fil., 263. 



Stipes 30 c.M. or more long, firm, glossy, naked. Fronds 90—120 c.M. 

 long, + 60—60 c.M. broad. Pinnae ± 2 c.M. broad, acuminate to caudate 

 at the apex, the lower ones short-stalked, the edge cut '/i — 'A °f ^^^ "^^Y 

 down into entire, spreading, blunt lobes 2'/j, — 4 m.M. broad, the basal lobes 



