I 



417 

 r4. ORYOSTAOHYUM, J. Smith. 



Sori large, occupying the veins as well as the parenchyma. 



(1) O. splendeus, j. Stn.; Aglaomorpha splendens, Gopel, in 

 Philipp. Journ., VF, 141; — var. pilosum; A. pilosa, Gopel, 1. c. 



Forma typica: Gestae, costulae and fertile segments naked. 

 Var. piloisuui: Gestae, costulae and fertile segments pilose on 

 both sides. 



(2) D. Hieronyini, JBrau., in Lautb., Beitr. Flor. Pap., I, 55; 

 Aglaomorpha Hieromjmi, Gopel., in Philipp. Journ., IX*^, 9. 



Rhizome wide-creeping, clothed with grey-brown, pale-margined, 

 elongated, triangular-cordate, acuminate, peltate scales. Stipes scattered, 

 + 1 % — 2 cm. long, articulated ± '/j cm. above the base, provided with 

 long, whitish hairs. Fronds lanceolate, + 70 — 80 cm. long, to 26 cm. 

 broad, deeply pinnatiM, narrowed towards both ends. Segments remote, 

 ascending; barren segments 8 — 10 on a side, lanceolate-falcate from a 

 dilated base, the central ones the largest, to 17 cm. long, 2'/2 cm. broad, 

 acutely long-acuminate, the edge entire, narrowly recurved; higher seg- 

 ments fertile, 8—9 on a side, linear,' ascending, falcate, to 3 mm. broad, 

 connected by a very narrow wing. Texture coriaceous; upper surface 

 naked, lower long-hairy, the hairs whitish; costa more or less hairy, 

 sulcate above. Sori oblong, at length confluent. 



Neio G^dnea. 



(3) IS. novoguineense, Bmu., in Lautb., Beitr. Flor. Pap., I, 

 56, fig. 3 D. 



Fronds sessile, ± 75 cm. long, the sterile lower portion triangular- 

 cordate + 50 cm. long, 14'/^ cm. broad at the base, suddenly dilated 

 into a deltoid fertile upper portion 22 cm. long by 23 cm. broad; barren 

 portion incised, i. e. dentate-lobate at the base, deeply pinnatifld upward, 

 the lowest lobes (teeth) deflexed, close, the following horizontal, triangular- 

 oblong, 3 — 4Yj cm broad, acute, close or inbricate, the higher hnear- 

 lanceolate, subspreading, 2'/2 — 5 cm. broad, undulate at the edge; fertile 

 portion deeply pinnatifld into + 8 linear segments on each side below 

 the terminal one, the lowest the largest, to ± 15 cm. long and 1 cm. 

 broad. Texture chartaceous, pellucid; surfaces naked; costa deeply grooved 

 Feens and Feen Allies. 27 



