22. DKYOPTEEIS. § 1. LASTEEA. 169 



Rhizome wide-creeping, black, sparingly scaly or naked. Stipes 30 — 45 

 cm. long, scaly only at the base, firm, villose. Fronds deltoid or ovate- 

 lanceolate, ± 30 — 60 cm. long, 30 cm. or more broad. Lower pinnae 

 much the largest, deltoid, 10—20 cm. long, 5 — 10 cm. broad. Pinnulae 

 lanceolate, more or less deeply pinnatifid. Tertiary segments unequal- 

 sided, ovate-rhomboidal, deeply pinnatifid with toothed lobes. Texture 

 variable; rachis more or less villose; under surface more or less villose 

 on the veins. Sori rather large, medial. — Variable. 



New Gruinea; Australia, Tasmania, Norfolk Island, New Zealand. 



(58c; See No. 46. 



(59) D. setigera. O. Htmet — var. Backeri, v. A v. R., in Bull. 

 Btz., 191S, XI, 10, 11; D. Backeri, v. A. v. K, in Bull. Dep. Agr. I. N., 

 1908, XVIII, 8; — var. pallida, v. A. v. R., 1. c. 



Rhizome erect or suberect; stipes and rachises provided with flattened 

 or subterete, deciduously ciUated or setulose, linear-subulate or needle- 

 like, squarrose, subsetiform scales leaving the stipe and rachises rough 

 by their persistent bases when they fall; indusium small or rudimentary. 

 — D. multiseta Bk.) G. Ghr. is perhaps a large form of this only. 



War. Backeri i^includ. var. aspera : Like the type but the 

 rhizome creeping. 



War. pallida: Like the type but the stipe and rachises not 

 setigerous, smooth, only pubescent along the upper side. 



i59a) O. niesodon, Copet., in Philipp. Journ., VIF, 54. 



Stipes provided at the base with linear, castaneous scales, sparingly 

 spinulose above. Fronds + 35—40 cm. each way, the rachises castaneous 

 above, velutinous above, as are the costae. Lowest pinnae largest, 

 triangular, much acuminated; lower pinnulae stalked, acuminate; lower 

 tertiary segments short-stalked, cordate, acute, provided at the base with 

 a single- pair of adnate, obtuse, coarsely toothed ultimate segments; all 

 the division pinnatifid in the upper part, mth the lobes connected by a 

 decurrent wing which is often provided with a single tooth; penultimate 

 segments coarsely and acutely toothed, oblanceolate. Sori remote from 

 the margin, small; indusium persistent. — Near D. dissecta 0. Ktze but 

 more compound. 



Mindanao. . . - 



