﻿402 53. DIPLAZIUM. § 1. EUDIPLAZIUM. 



rachis, sparingly scaly towards the frond. Fronds oblong, + 20 c.M. long, 

 ± 11 c.M. broad, hardly narrowed at the base. Terminal pinna + 11 c.M. 

 long, acuminate, lobed at the base; lateral pinnae ± 6 on each side, oblong, 

 nearly sessile or short-stalked, rather distant, spreading, ± 5 c.M. long, + 

 I'/a c.M. broad, the base subtruncate on the upper, rounded on the lower 

 side, the edges densely 2-crenulate, the apex obtuse. Texture herbaceous; 

 rachis and surfaces subglabrous; veins dense, forked, subpinnate in the ter- 

 minal pinna. Sori distant, unequal, linear, not reaching the margin; in dusium 

 thin, inconspicuous, greyish. 

 Luzon. 



(5fc) O. 'Vreinlandii, Christ, Bull. Herb. Boiss., 2^ S(^rie, I, 452. 



Rhizome oblique, black, decumbent or creeping. Stipes subfasciculate, erect, 

 subflexuose, slender, 10 — 16 c.M. long, the base black, the rest green, clothed 

 like the rhizome with few, distant, black, subulate scales. Fronds elongate- 

 lanceolate, + IS c.M. long, 4 — 5 c.M. broad at the base, pinnate. Pinnae 

 8 — 9 on each side, distant, the lower ones short-stalked, obtuse, the base 

 hastate, (the auricles obtuse, rarely deeply incised), the margin broadly, but 

 not deeply incised and crenate, the teeth acute; terminal pinna ± 6 c.M. 

 long, pinnatifid. Texture herbaceous; surfaces naked; veins oblique, 7 — 8 on 

 each side, forked or sometimes 3-partite. Sori reaching from the midrib to , 

 the margin, narrow; indusium thin, grey. 



New Guinea. 



(6) O. camarinuin, Copel. (not Bk.), Polypod. Philipp., 73; 

 Asplenium camarinum, Bk., Hk. Bk., Syn. Fil., 230. 



Stipe and rachis dull-brown, naked. Fronds oblong, simply pinnate, 

 20 — 45 c.M. long, 15 — 25 c.M. broad. Pinnae in 8 — 12 pairs, distant, stalked, 

 linear-ligulate, acute, crenate, 10 — 15 c.M. long, ± 2 c.M. broad, rather 

 reduced on the lower side, rounded on both sides at the base; lowest pinnae 

 not reduced. Texture membranaceous; surfaces naked; colour dull-green; 

 veins distinct, in close, little-ascending pairs, posterior forked, anterior simple. 

 Sori reaching from the costa to the edge; indusium persistent. 



South. Camarines. 



* (7) D. silvaticum, Sw., Christ, Farnkr. d. Erde, 217; Bedd., 



Ferns S.I., tab. CLXI (small); D. acuminatum, Pr., Tent. Pterid., 113; i4s/)/ewmm 



sylvaticum, Pr. (not Melt.), Rac, Flor. Btz., I, 223; Callipteris sylvalica, Bory, 

 (oldest name). 



