272 53. DIPLAZIUN. § 1. EUDIPLAZIXM. 



Rhizome 1 cm. thick, the apex clothed like the black base of the 

 stipes with narrow, black-brown scales ± 6 mm. long. Stipes 25—50 

 cm. long, nearly naked, stramineous, as is the rachis. Fronds subdeltoid, 

 nearly 60 cm. long, + 40 cm. broad, acuminate, 3-pinnatifid. Pinnae 

 obhque, distant, acuminate, the lowest petiolate, the petioles + 4 cm. 

 long. Pinnulae often spreading at a right angle, distant, stalked, the 

 higher ones adnate, the highest connected, the largest + 7 cm. long, 

 more. than 2 cm. broad, cut down in the lower part nearly to the costa; 

 segments up to 5 mm. broad, subfalcate, separated by open sinuses, the 

 margin entire or provided with a few teeth at the apes. Texture 

 coriaceous; surfaces naked. Sori rather hnear, shghtly recurved, distant 

 from the margin, partly double partly simple; indusium persistent. 



Luzon, Mindanao. 



(43d?) D. Gmbristegiiiiu, ». A. v. JK.; Athyrium fimbristegium, 

 Copel, in Philipp. .Journ., IX'^, 5. 



Stipes long, black-purple-brown, giabrescent, smooth. Fronds + 80 

 cm. long by 50 cm. broad, 3-pinnatifid, the rachis furfuraceous, giabrescent. 

 Pinnae short-stalked, the lower 25 — 30 cm. long, to 12 cm broad, 

 acmuminate, the rachis often minutely furfuraceous in the groove. Pinnulae 

 horizontal, very short-stalked, much abbreviated, to 13 mm. broad, deeply 

 pinnatifld. Segments subfalcate, to + 2 mm. broad, entire or obscurely 

 crenulate, obtuse or subacute. Texture herbaceous; surfaces naked; 

 veins simple, -h 8 on a side. Sori occupying the lower half of the veins, 

 the lowest double; indusium thin, bright-brown, lacerate-lobate. 



NeiD Guinea. 



(44) S©. ebeneiiMi, J^. Sm.; Athyrium cyalheifolium, Milde, CopeL, 

 in Philipp. .Journ., IIP, 293, p. p. 



(45a) D. asperniM, Bi. 



Stipe and rachis muricate with short-conical wai-ts ; ultimate segments 

 (lobes) not rarely obliquely acute. — Athyrium subscabrum Copel. (Phi- 

 lipp. Journ., VIIJC, 141, tab. lY) from Java, which is probably a young 

 or reduced form of this, has the fronds smaller, + 50 cm. long, the 

 stipe and rachis less prickly, rather roughish, the lobes subentire, obiquely 

 acute, the sori + 3 mm. long, occupying the lowest veins only. 



