14. DENNSTAEDTIA. l29 



{7b) D. Mooveri, Christ. 



A plant gathered by Elmer (No. 11430) has all the dimensions 

 nearly half as long as described by Christ, and the 'fertile quaternary 

 segments partly crenate or lobato-crenate partly entire but then with a 

 single soriferous tooth on the anterior side, the lower anterior segments 

 the largest, with 1 — 2 sori on the anterior side, crenate on the upper 

 and inner side, with the lowest anterior tooth often lobe-like and crenated 

 again, with a single sorus borne on the anterior side. 



(7c) See No. 5. 



(Id) O. terminalis, v. A «. jK., in Bull. Btz., 1914, XVI, 

 6, tab. IV. 



Rhizome creeping, densely fibrillose with red-brown, spreading, 

 articulated hairs. Stipes scattered, 50 cm. more or less long, glossy, 

 reddish-brown when dry, deciduously fibrillose, at length rough. Fronds 

 ovate, acuminate, + 30 — 35 cm. long, nearly as broad, 4 — 5-pinnatifid, 

 the rachises soon naked, with a few persistent fibrils on the grooved 

 upper side. Pinnae stalked, close ; higher pinnae lanceolate, acute, with the 

 lower anterior pinnulae spreading, produced, the lowest posterior 

 suberecto-patent,' the rachis narrowly winged lowest pinnae longest, 

 + n'/i — 20 cm. long, 7 '/a — 10 cm. broad at the base, the 

 lowest posterior pinnulae the longest. Pinnulae petiolulate, lanceolate- 

 oblong, to 9 cm. long and 3 cm. broad, in shape similar to the higher 

 pinnae. Tertiary segments oblong, the largest to 2 cm. long and ','4 "2™- 

 broad, bluntish,, cut down nearly to the costa into + 3 — 4 pair of 

 oblique, decurrent, simple or 2 — 3-fld leaflets; simple leaflets hnear- 

 oblong, to + 5 mm. long, 1 mm. broad, bluntish or subacute; incised 

 leaflets subobovate-cuneate, to 1^'^ mm. long. Texture subcoriaceous ; 

 surfaces naked; a central vein in each ultimate segment, not reaching 

 the apex. Sori terminal on the ultimate segments; indusium cupuliform. 



Sumatra. 



(7e) O. luultificia, v. A. ». JK., in Bull. Btz., 1915, XX, 10. 



Stipe and rachises provided with deciduous, fibril-like, articulated, 



pale hairs, as are the costae, costulae and veins beneath. Fronds + 80 



cm. broad at the base, copiously sub-5-pinnate. Largest pinnulae 



triangular-oblong, to + 20 cm. long, to + 7 '/a cm, broad at the base. 



Feens and Feen Allies. 9 



