﻿50. SADLERIA. 389 



Pinnae erecto-patent or spreading, 20 — 40 c.M. long, 1 — 3 c.M. broad, cut down 

 into very numerous pinnulae. Pinnulae linear, subfalcate, acute or bluntish, 

 sessile with a dilated base, to 4 m.M. broad, those of the upper pinnae conected 

 at the base, the lower ones free. Texture coriaceous; veins inconspicuous; 

 rachis and both surfaces naked. Sori placed on elevated receptacles. 

 Sumatra; Hawaii. 



SI. r>0013Ij?L, n. Brown. 



Sori oblong, straight or slightly recurved, superficial, placed in 1 or 

 more rows on each side, parallel to the costa. Indusium of the same shape 

 as the sorus, attached at the outer side, opening inwardly. 



Rhizome + erect. Stipes not articulate to the rhizome. Fronds pinnatifid 

 or pinnate ; veins forming 1 or more series of arches between the midrib and 

 edge, on which the sori are placed. Hk. Bk., Syn. Fil., tab. IV, fig. 37; 

 Diels, in Engl. & Prantl, Nat. Pfl.Fam., P, fig. 134, C— D. 



^ Fronds pinnatifid, at best pinnate in the lower half, the i — 3 lowest pairs 

 of segments occasionally quite free, rounded and subauriculate at the base. 



(1) D. dives. 



:^c:^c Fronds pinnatifid in the upper, pinnate in the lower half, with some of the 

 lower pairs of pinnae cordate or distinctly auricled, or even hastate at the 

 base. (2) D. media. 



* (1) D. dives, JH«e, Rac, Flor. Btz., I, 164; Kze, Farnkr., II, tab. 

 CV; Bedd., Ferns S.I., tab. CCXXII. 



Rhizome + erect, densely clothed with dark-brown, lanceolate, acuminate 

 scales. Stipes slender, erect, naked, blackish like the rachis, scaly at the 

 base, 10 — 30 c.M. long. Barren fronds ovate-lanceolate, to ± 30 c.M. long, 

 7 — 13 c.M. broad, deeply pinnatifid throughout, af best pinnate in the lower 

 half. Segments several to many, linear or linear-oblong, + blunt, subundu- 

 late, serrate, dilated at the base, + 1 c.M. broad, the higher ones confluent, 

 the lower ones confluent or contiguous and occasionally the 1 — 3 lowest pairs 

 quite free, rounded and subauriculate at the base. Texture coriaceous; 

 surfaces naked. Fertile fronds often longer, with narrower segments; seg- 



