194 22. DRYOPTERIS. § 1. LASTRAEA. 



Stipes tufted, 15 — 25 c.M. long, more or less densly clothed with long, 

 lanceolate and linear scales. Fronds 50 — 45 c.M. long, 20 — 50 c.M. broad, 

 ovate-lanceolate. Pinnae lanceolate, the lowest the largest, 15 — 15 c.M. long, 

 + S'/i — 4 c.M. broad, cut down quite to the rachis below into oblong, 

 bluntish pinnulae 5 — 8 m.M. broad, the edge slightly (sometimes spinosely) 

 toothed. Texture herbaceous, but firm; surfaces naked; rachis slightly scaly. 

 Sori in rows of 6 — 9 to a pinnula, near the midribs ; indusium red when young. 



Philippines; China, Japan. 



(57) D. Preslii, O. Xtse, C. Chr., Ind. Fil.; Neprhodium Preslii, Bk., 

 Hk. Bk., Syn. Fil., 272. 



Stipes 15 — 25 c.M. long, slender, deciduoiisly fibrillose. Fronds 15 — 25 

 c.M. long, 10 — 15 c.M. broad, lanceolate-deltoid. Upper pinnae lanceolate, 

 close, lowest pair deltoid. Upper pinnulae + 5 m.M. broad, blunt, entire, 

 lower ones pinnatifid with similar lobes to a broad, luicut centre. Texture 

 subcoriaceous ; rachis fibrillose: both surfaces naked. Sori about 6 to the 

 lower lobes, dorsal on the veins, nearer the midribs than the edge. 



Philippines. 



(58) D. chacrophyllifolia, C. Chr., Ind. Fil.; Aspidium chaero- 

 phyllae folium, Zipp., Ann. Mus. Bot. L. B., I, 228. 



Caudex oblique, clothed like the base of the stipes with large, ferru- 

 gineous scales. Stipes + 50 c.M. long. Fronds to + 45 c.M. long, ovate, 

 acuminate. Pinnae subopposite, short-stalked, + 15 c.M. long, ovate-oblong, 

 acuminate, the lower ones spreading. Pinnulae spreading, + 5^/4 — 4 c.M. 

 long, + 2 c.M. broad, approximate, the higher ones confluent, the lower ones 

 short-stalked, ovate-lanceolate, the apex obtuse, sen-ate, the base truncate on 

 the upper, subcordate on the lower side. Lobes not deep, with a dis- 

 tinct, sharp sinus, oblong, subtruncate, crenate or toothed. Texture thinly 

 chartaceous ; rachis yellowish or reddish, furnished vdth minute, reddish-brown, 

 lanceolate or subulate, scattered scales ; surfaces naked, the upper one opaque, 

 the under one yellowish; main veins pinnate in the lobes with 5 — 4 pairs of 

 simple v»ins. Sori medial on the lower veins. 



Java; Aneitum. 



(59) D.-iedulenlA^. O. Mtsie, C. Chr., Ind. Fil.; Aspidium edulentum, 

 Kze, Bot. Zeit., i846, 474 ; Nephrodium edulenlum, Bk., Hk. Bk., Syn. Fil., 279. 



Stipes stramineous. Fronds oblong, acute, 50 c.M. or more long and 



